Thursday, January 7, 2010

Is there a ';best '; filter for synthetic oil?

My son claims that the Purolator 1 is the best for synthetic oil. Opinions?Is there a ';best '; filter for synthetic oil?
Pureolator is not bad, but any good quality filter will work. You may want to take a look at this website where a mechanic has cut open dozens of filters and examined them:





http://minimopar.knizefamily.net/oilfilt鈥?/a>





Some of the most hyped brands turned out to be quite poorly built. He's posted his overall conclusions here:





http://minimopar.knizefamily.net/oilfilt鈥?/a>Is there a ';best '; filter for synthetic oil?
The best oil filter for your car is OEM....not


an opinion...fact.
Synthetic oil will work with any high quality oil filter.
An old sock in a coke can has always worked fine for me.

What is the best synthetic oil for a 2004 honda accord v6?

i have about 34k thousand miles.. and wish to change my oil.. but changing it to synthetic oil...What is the best synthetic oil for a 2004 honda accord v6?
I like Mobil 1 also. 22 bucks 5 qt. jug at wal mart . also Mobil 1 filter about 10 bucksWhat is the best synthetic oil for a 2004 honda accord v6?
lots of people like mobil 1 synthetic. keeps engine parts very clean. nice car by the way.

Why they say when you use synthetic oil you cant go back to regular oil?

if you cant go back what really hapends to the engine?do it worth the change?Why they say when you use synthetic oil you cant go back to regular oil?
To clear all this up,,you can go back anytime you want too,people who say you can,t are not mechanically inclined,,but who would want to go back,,the advantages of synthetic are so great that anyone using it would be down grading there vehicle ,,if they switched it back,,true it cost more,,but it,s worth every penny of it,s cost,,you will see a smoother running engine,,also a lot quieter,and maybe a small increase i your fuel mileage,,i use it in everything i own,,also in my customer,s vehicles,,and never any problem,s from it,,hope this help,s.Why they say when you use synthetic oil you cant go back to regular oil?
Thats a load of crap.


Switch...top off... if it's the correct service grade it is OK.





http://www.quakerstate.com/pages/carcare鈥?/a>


http://www.chris-longhurst.com/carbibles鈥?/a>





read up on it at these sites:





Yours: Grumpy
You can go back, trust me.


You have to completely CHANGE the oil, tho, you just cant add the different oil to the crankcase on top of the original oil (synthetic or regular).


Got it?


And ya gotta change the oil filter, too, don't forget that.
Here's the correct answer. Whoever said that you can't go back to regular oil is wrong. Your engine will not suffer any bad effects from changing back to normal oil. With synthetic oil your engine may perform slightly better, because it flows more freely at high and low temps, but there is absolutely no danger to the engine by reverting to the normal formulation oil. Frankly, unless you live an an extremely hot or extremely cold climate you likey won't notice any difference; at worst you might see a minor change in gas mileage but I doubt even that. So relax.





Hope this helped.
They just want to sell more synthetic. Just like most manufacturers says use only genuine bla bla parts.
Think ! -- if Syn and Pet motor oil don't mix how do they sell, Blend.
I have gone back to regular oil after using synthetic and there has been no ill effects. However, if you go to synthetic after using regular oil, you could have oil leaks because the synthetic oil will seep through the gaskets that the regular oil did not.
synthetic motor oil is made from conventional oil. It is made to have all the same size molecules (hydrocarbon chains). when you use conventional oil, the short chains burn off first and leave the long chains in your engine, resulting in thicker oil. You know when you are way over due for an oil change and some body says your oil was really thick. Its because all the short hydrocarbon chains burnt off. You can mix synthetic and conventional. you can switch back and forth. The only problem i've found with synthetic is that the molecules are engineered to be the same size and that is ';small'; to keep the oil thin. So. it will leakk out of an existing leak faster than conventional oil. Not so much faster that its going to start pouring on the ground, but a little bit. If youare already using conventional motor oil and you have a bad leak, do not switch to synthetic till you fix your MAIN PROBLEM, THE LEAK. its like buying expensive oil and pouring it on the ground. also try bgfindashop.com


PS. nothing happens to the engine. I would use betteroils though. pennzoil had a bad reputation for causing sludge buildup. I dont know if thats still true since they are using purebase now. I still wont use it. I use valvoline, castrol, mobil, amsoil (synthetic), bg (synthetic), or mobil 1 (synthetic)

How long at maximum can Mobil 1 synthetic oil be used?

I used mine for 15,000 kms without changing (out of neglect). Will that damage my engine?How long at maximum can Mobil 1 synthetic oil be used?
i doubt it. A friend only changed the oil every 25K miles. The trick to it is to change the oil filter every 3K miles and add a fresh quart of oil. That keeps the additives fresh in the oil and it will protect the engine. He had a S-10 Chevy truck with over 220K miles and it still sounded like a new engine, you could barely hear it run. good luckHow long at maximum can Mobil 1 synthetic oil be used?
The issue is not the synthectic oil, but actually the filter. The oil captures the sediments and fine particals and other impurities. The filter does just as the name implies. The oil will not break down or fail to do its job. The filter on the other hand may clog .. you get the drift. Check the rating on your filter.
It isn't the oil you should worry about so much, but rather the filter...if a filter gets filled up with junk, it tends to starve the engine for lubrication...





I'm a dinosaur anyway, so I believe in changing oil and filter every three or four thousand always, regardless of whether it is synthetic or not...
But how do you drive your car depends more.
  • hockey
  • Can I switch to synthetic oil on a vehicle that has had conventional it's entire life?

    It's a 1990 Cherokee w/130,000 miles. Seafoam and Restore used occasionally if it matters.Can I switch to synthetic oil on a vehicle that has had conventional it's entire life?
    of course you can as a cars miles get higher its engine needs better lubrication. ond your oil stays cleaner longer.Can I switch to synthetic oil on a vehicle that has had conventional it's entire life?
    as i understand it yes you can, but it will just be more expensive and wont help your engine. just stick with conventional oil, you already have gunk build up that synthetic is supposed to not create.
    yes
    Sure you can. There's no rules against it. And I recommend it!
    yes u can change to sythetic oil but change the oil filter as well

    Will synthetic oil help my car?

    I have a '05 Scion tC and I'm due in for an oil change soon. I'm just wondering if I should switch over to synthetic oil because I heard that you could get better performance, mileage and that it was just better in general for you car. Is this all true?Will synthetic oil help my car?
    Consumer Reports tested motor oils by putting them in New York City taxis and checking the tolerances on wear surfaces before and after running them hard for many miles. There was no measurable difference in protection among all the oils tested.





    This was not the most severe test, however, because the cars ran continuously, so there were no 'cold starts,' the toughest test your oil must face.





    Full synthetic oil (Mobil One or Castrol Syntec, Penzoil Platinum, Valvoline MaxLife Full Synthetic, Quaker State Q Advanced Engine Full Synthetic, Amzoil, etc.) protects better in this case. Because they have a wider viscosity index (thicken less with cold, thin less with heat) they are thinner after sitting while you work or sleep, so that the oil pump can get it to where it is needed to protect against wear quicker.





    Synthetics also thin out less as your engine heats up, so they maintain the protective film better and under more severe conditions.





    Finally, a synthetic oil's light fractions (thinner components) are less volatile, so they don't evaporate as readily, making the oil more stable and longer lasting.





    Hope this helps. Good luck!Will synthetic oil help my car?
    '05, go for it.


    The gaskets shouldn't leak.
    yes it is, you also don't have to change your oil as often. but remeber, once you put synthetic oil in your car you can't go back to using non-synthetic oil.
    Nothing you will notice,except the extra expense.Regular oil has worked this long just fine. And it is just not worth it on a Scion.
    All of this is true, but synthetic oil is really expensive compared to regular oil. They claim you don't have to change it as often, but then all the old dirt and pollutants will just keep circulating through the engine until the next oil change. You'll get 200,000 miles out of your Scion with regular oil with oil changes as recommended in your owner's manual.
    My personal opinion is its better for your car and if you want your car to last spend the little extra money to keep it in good shape. I think Mobil 1 is about as good as it gets, it saved my parents 95 Impala ss.
    Lol, asking which type of oil to use will get you a plethora of different opinions. I have read in magazines that running synthetic oil, tranny fluid, and rear-end fluid will give SOME cars 6-10 horsepower. So, just changing to synthetic oil probably won't give you a noticeable difference, performance-wise. Plus, in my opinion, synthetic oil does protect a little better and has better heat resistance, so the oil won't break down as easily. And you can go a little farther between oil changes with syn. oil. Personally, the only thing I didn't like about it, was in my 69 Firebird, I ran Castrol Syntec 5W-50. With it being such a thin oil, my oil pressure dropped a little under my comfort zone. But they do make thicker synthetic oils, so I am sure your more-technologically-advanced car will handle the synthetic oil just fine.

    Should synthetic oil be used in cars that have high mileage?

    I heard somewhere that it shouldn't.Should synthetic oil be used in cars that have high mileage?
    Well I think I can answer that for you, my car has 248,000 and the last 3 oil changes I have use full synthetic oil. With no ill effects I can tell, no leaks, runs drips or errors. I go for 5000 on an oil change,so that 15,000 miles with no problems. I did use the synthetic blend for over 100,00 before that. Any conventional synthetic oil should give you no problems, I did try STP when it first came out with synthetic oil and it caused my car to start leaking oil, 70's Granada w/302.Should synthetic oil be used in cars that have high mileage?
    Synthetic oil was originally developed for high performance racing engines. Mobil tried to popularize synthetic oil for passenger vehicles back in the early 1970's. At the time, Mobil was promoting 20K or 25K oil changes with synthetic, but they soon backed down from this. Synthetic oil is a good choice if you have a vehicle with a high performance engine (in fact synthetic is required for many of these engines). It is also a good choice if your vehicle is operated in extremely cold climates. It has higher resistance to breakdown caused by heat and it flows better in extreme cold. Unfortunately for the synthetic oil industry there is virtually no advantage to using synthetic oil in a non-high performance engine that is operated in moderate climates. You probably could go a bit longer between oil changes with a synthetic, i.e. following the normal service schedule even if you fall into the severe service category, but I wouldn't advise this. In short, synthetic may give you the peace of mind of knowing that you are using an oil that is far better than necessary for your vehicle, but it won't reduce wear or extend the life of the engine. The mistake some people make it to wrongly extrapolate these benefits onto normal engines operated in mild climates, with the ultimate lack of any knowledge being manifested with statements such as ';synthetics provide 'Peace of Mind,' or 'Cheap Insurance,''; or other such nonsense.
    My Accord has 240,000 miles on it and I change it with full synthetic every 5000 miles. Seems to have work great since I bought the car used at 160,000 miles. I don't have any oil leaks or anything and the engine isn't making any unusual noises.
    it really dont matter but really it wouldnt help it any better than just changing the oil would you can use whatever you wish to run high mileage or not my car has over 300,000 still using regular oil
    from what ive witnessed as being a mechanic for over 20 years is that it will not properly oil your engine if you have been using conventional oil. dont listen to what they say on tv

    How many miles for oil change with synthetic oil?

    can you go further between changes than with conventional?How many miles for oil change with synthetic oil?
    The big benefit of synthetic oil over conventional oils is that it does not break down as easily or as fast. However, engine oil will still become contaminated over time as you drive. It's those impurities that you do have to get rid of by changing the oil.


    Can you stretch oil change intervals? The only real way of finding out is by having your old oil analyzed.How many miles for oil change with synthetic oil?
    15000 is fine
    For what it costs I change it less often.
    Synth you can go 5000, I've done it before but only with Mobil 1 - that is the only synth I trust for that long. Depends on the nature of how you daily drive -
    My uncle's merdecez benz says every 12,000 miles, it's kind of crazy and hard to believe. The first oil change was at 16,000 miles...lol...not for me 5,500 max. using synthetic oil lol
    10,000 minimum according to gregs japaneese auto. The reason is because you need to work in the engine and that has to be done with standard oil.





    You can just do a drain flush and put in a stanard oil, but use one that is designed for high milleage. Then you can go until you reach 10,000. Do not go 10,000 without a high milleage oil or it'll break down to easily and not lubricate the engine properly.





    Also, you should change the synthetic oil as much as you do standard oil. Not needed in many cases because you can get 3,000 miles extra out of it, but it does help keep the oil fresh and clean.
    yes you can go further... a few thousand miles more.. instead of changing at 3,000 miles, you can change at 5,000 miles, but if those miles were made in city driving , you should still change the oil at 3,000 miles...





    I change mine at 8,000 kilometers = 5,000 miles
    I would (and do) change every 3000 regardless. Don't take chances with your engine.
    I have a friend who uses synthetic motor oil in his truck, and he changes the filter every 3,000 miles but changes the oil and filter every 6,000 miles. He hasn't had a problem (his truck has over 150,000 miles on it and runs fine).





    P.S.: Be sure to top off the oil if you change the filter only. Shouldn't take more than a quart if you do that.
    depends on how you drive...





    my caddy has an oil life meter, it takes readings on engine conditions and subtracts percentages accordingly, when it gets ';low'; 10% oil life or less, i get around to changing it, it has gone anywhere from 1000 miles (once when i overheated) to 7,000





    and i always use mobil 1 full synth

    What is the approximate cost for a quart of Royal Purple 2-cycle synthetic oil? How about a gallon?

    What's the application? Outboard with oil injection? weedeater? snowmobile with an exhaust power valve? I can't speak for Royal Purple, but Amsoil has 5 different 2-cycle oils: http://www.amsoil.com/lit/g1988.pdf





    check out my Amsoil website and click 'Other Links' to 'Browse Amsoil Products' and you can look by application, i.e. marine, lawn %26amp; garden, etc., and check prices: http://www.number1synthetic.com





    Also feel free to send me a message from the site if you need assistance. Good luck!

    Are there any advantages to using synthetic oil in your car?

    besides the environmental advantages of not relying on crude oil, are there any REAL advantages to using synthetic motor oil instead of regular motor oil in your car. I have a 2004 Saturn ION with 114k miles on it and was thinking about switching to synthetic motor oilAre there any advantages to using synthetic oil in your car?
    There are numerous advantages. One synthetics do not break down from the heat as does a petroleum base oil. One of the major advantages is that you can use a lower viscosity synthetic which will provide superior lubrication and protection over a conventional oil for summer driving, and for winter startups, the oil retains that same viscosity resulting in less friction, and wear. The majority of engine wear occurs upon starting the car. With that said there are truly synthetic oils and synthetic blends. I prefer Mobil 1, a true synthetic oil, and the first synthetic oil to be introduced on the market back in the late 70's. With petroleum prices up, there is less of a price differential than before. The only drawback is that if you use the lower viscosity synthetic, and your vehicle burns oil, this may increase due to the thinner, lower viscosity synthetic.Are there any advantages to using synthetic oil in your car?
    Actually Amsoil was the first synthetic oil to pass API standards for passenger car use in 1972. It was also first to recommend extended drain intervals; 25,000 miles or one year. Mobil-1 briefly recommended this interval in the '70's and then went back to 'follow your owners manual.' In the last few years Mobil has come out with Mobil-1 Extended Performance that recommends 15,000 miles or one year.





    Amsoil pioneered the field of synthetic lubrication for automotive use. In this case, the first is also the best. Check out Amsoil tested against Mobil-1 and several others: http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>





    To answer your question synthetics are better. Thermal and oxidative stability means the oil won't break down making the useful life of the oil much longer. There is less friction due to the uniformly-sized molecules of synthetics meaning cooler operation and better fuel economy. The wear protection of synthetics is also far greater than conventional oil. The oil also stays fluid in extreme cold, helping the engine start easier and receive proper lubrication faster than a thickened conventional oil. Lower volatility (less oil evaporates)= lower oil consumption and emissions. These are some of the benefits.


    check out the 5W-30 here: http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>





    Browse Amsoil products, even look up your cars recommended oil weight, capacity, etc. :


    http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>





    You can sign up as a Preferred Customer and buy at wholesale ($5.70 a quart vs. $7.25 for 5W-30).





    Hope this helps. I am an Amsoil Distributor and I have Amsoil 0W-30 in my Cavalier and Amsoil 20W-50 in my Mustang.
  • hockey
  • What is the approximate cost for a quart of Royal Purple 2-cycle synthetic oil? How about a gallon?

    What's the application? Outboard with oil injection? weedeater? snowmobile with an exhaust power valve? I can't speak for Royal Purple, but Amsoil has 5 different 2-cycle oils: http://www.amsoil.com/lit/g1988.pdf





    check out my Amsoil website and click 'Other Links' to 'Browse Amsoil Products' and you can look by application, i.e. marine, lawn %26amp; garden, etc., and check prices: http://www.number1synthetic.com





    Also feel free to send me a message from the site if you need assistance. Good luck!

    Are there any advantages to using synthetic oil in your car?

    besides the environmental advantages of not relying on crude oil, are there any REAL advantages to using synthetic motor oil instead of regular motor oil in your car. I have a 2004 Saturn ION with 114k miles on it and was thinking about switching to synthetic motor oilAre there any advantages to using synthetic oil in your car?
    Actually Amsoil was the first synthetic oil to pass API standards for passenger car use in 1972. It was also first to recommend extended drain intervals; 25,000 miles or one year. Mobil-1 briefly recommended this interval in the '70's and then went back to 'follow your owners manual.' In the last few years Mobil has come out with Mobil-1 Extended Performance that recommends 15,000 miles or one year.





    Amsoil pioneered the field of synthetic lubrication for automotive use. In this case, the first is also the best. Check out Amsoil tested against Mobil-1 and several others: http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>





    To answer your question synthetics are better. Thermal and oxidative stability means the oil won't break down making the useful life of the oil much longer. There is less friction due to the uniformly-sized molecules of synthetics meaning cooler operation and better fuel economy. The wear protection of synthetics is also far greater than conventional oil. The oil also stays fluid in extreme cold, helping the engine start easier and receive proper lubrication faster than a thickened conventional oil. Lower volatility (less oil evaporates)= lower oil consumption and emissions. These are some of the benefits.


    check out the 5W-30 here: http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>





    Browse Amsoil products, even look up your cars recommended oil weight, capacity, etc. :


    http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>





    You can sign up as a Preferred Customer and buy at wholesale ($5.70 a quart vs. $7.25 for 5W-30).





    Hope this helps. I am an Amsoil Distributor and I have Amsoil 0W-30 in my Cavalier and Amsoil 20W-50 in my Mustang.Are there any advantages to using synthetic oil in your car?
    There are numerous advantages. One synthetics do not break down from the heat as does a petroleum base oil. One of the major advantages is that you can use a lower viscosity synthetic which will provide superior lubrication and protection over a conventional oil for summer driving, and for winter startups, the oil retains that same viscosity resulting in less friction, and wear. The majority of engine wear occurs upon starting the car. With that said there are truly synthetic oils and synthetic blends. I prefer Mobil 1, a true synthetic oil, and the first synthetic oil to be introduced on the market back in the late 70's. With petroleum prices up, there is less of a price differential than before. The only drawback is that if you use the lower viscosity synthetic, and your vehicle burns oil, this may increase due to the thinner, lower viscosity synthetic.

    Can you switch from synthetic oil to regular oil in a Ford Escape (08)?

    I was on a trip, and decided to get my oil changed at a Valvoline, and they said that they recommended their regular oil. They put that in, and on my way home, I remembered that there was synthetic oil in there previously. Now, when I am at a stop, my engine shakes, causing vibrations that can be heard and felt. Is it okay that there is regular oil in my Ford Escape?Can you switch from synthetic oil to regular oil in a Ford Escape (08)?
    NO. Do not change from synthetic to regular, especially in a 2008 model engine. You have a 2008 vehicle under warranty, take it to the dealer for oil changes. This is NOT common knowledge so don't take personally. You may have some dealer perks you may not be aware of, like free oil changes, or discounts. All within the warranty of the vehicle. Check paperwork to verify.





    The original engine oil in a 2008 Ford is 5W-20. At its lowest it would be a combination of regular and synthetic. This type of oil is generally a looser oil than regular. It generally covers areas that regular oil cannot.





    To give a recommendation of 'yes' does not take into consideration that a newer vehicle, just like a baseball player's glove, needs to be broken in .





    The person who sold you that oil recommended you that oil because he/she is a salesman. As a former auto parts salesman, I can tell you that there is a fine line between offering factual advice and selling a part. Sometimes it is DANG hard to stay on one side of that line. Rest assured, you're getting the most factual advice I can give you, which came from 2 years selling experience, and constantly being around those with extensive experience.





    ~~~~~~~~





    Let's collate the FACTS:





    1. You have a vehicle.


    2. You have a vehicle which shakes when stopped.


    3. Your vehicle did NOT shake at one point in time.


    4. You went to a vehicle place to have the vehicle 'adjusted'.


    5. You notice an issue nearly immediately after going there.


    6. You can recall what they did to your vehicle.


    7. You want the vehicle to stop shaking.


    8. You are going to do what you can to remedy the problem.


    9. You are curious as to whether or not a party was at fault.


    10. You want that determination to be made to your satisfaction.





    ~~~~~~~~





    What to do:





    COLLECT INFORMATION FIRST BEFORE TELLING ANYONE ANYTHING:





    1. Call up a dealership who did NOT sell you the vehicle, ask for the PARTS department, and ask what the type of oil goes into your 2008 Escape (give them the engine specifications). Ask for a part number, as even the liquid products have part numbers. For part numbers will look similar to this: F3Z5-RF74T6-R29.





    2. Hang up, call another dealership who did not sell you the car and ask for the REPAIR SHOP (because it may be the same department. DO this for anonymity). Once there, say, ';I have a 2008 Escape with such-and-such an engine. What happens if I were to put something else other than [the type of oil they told you], like maybe, a Valvoline [specific oil in your engine as noted on the Valvoline receipt]?'; Take note of how they say it as well as what they say. Seriously, write it down.





    3. DRIVE to your dealer's shop entrance. It will be a large awning with about 3 or 4 lanes one-way (although their maintenance vehicles won't be obeying the one-way designation). Say, ';My engine shakes now, and it started almost immediately after leaving a VALVOLINE oil change place.'; Show him/her the receipt. They will check for type of oil and everything. Without telling them everything that you found out, mention to them in small bits at a time as they look at the receipt, ';I remember there was synthetic in there before the change, but the employee recommended a different oil.';





    After they explain to you the situation, do not hesitiate to ask them, ';Is this covered in my LIMITED POWERTRAIN WARRANTY?';





    I would like to know what they say if you want, for my experience. You can email me if you want when you find out. You'll undoubtedly have to pay for the service they perform if not covered by warranty.Can you switch from synthetic oil to regular oil in a Ford Escape (08)?
    Yes you can generally change the oil in any machine from one to the next





    It sounds like your car doesn't like the change.





    Synthetic oil has a greater tolerance to heat and lasts longer.





    I would change it back and see if it actually fixes the problem.


    Another oil change wont cost that much ..


    Pheeew But whatever problem the better oil might have been covering up might actually need to be serviced.understand?


    I hope this helps you.


    Ask a reputable mechanic in your neighborhood and hear it from guys who know if you dont want to give the oil change a try..Back to Synthetic a little more expensive but worth it.


    Good Luck!
    your new car shaking has nothing to do with the type oil in it, you can use regular oil or synthetic and it wont cause that, take it back to the ford garage and find out why the engine is missing.
    Of course you can interchange the oil.


    Make sure the old oil must be completely drained off, and the oil filter must be renewed.

    Is synthetic oil really beneficial for Honda accord 1999. Is the engine sophisticated enough for the oil?

    Don't waste your money on Synthetics... they're not any better, and way over rated. Change your oil when you should, and you'll be fine... you will not benefit from a synthetic oil at all.





    - Good Luck!Is synthetic oil really beneficial for Honda accord 1999. Is the engine sophisticated enough for the oil?
    According to the hubby:





    Its always beneficial ... I asked him to elaborate but he didn't... He said its a better oil ... cant hurt ...Is synthetic oil really beneficial for Honda accord 1999. Is the engine sophisticated enough for the oil?
    conventional oil cracks all the seals.Run some fork oil in it to swell the seals then after a few hundred miles change the oil to synthetic
    it depends on how much you drive. If you drive very little and only change your oil because you should at lest once a year than no. Synthetic oil is beneficial if you drive a lot or have a high performance car.
    any engine is sophisticated enough to use synthetic oil, if you can afford it and your car doesn't use any oil go for it.
    I agree with ';Dr. Deviance';. Synthetics are overrated.


    Some points to consider:


    Synthetics are ';slipperier'; or more slippery tha conventional oil - meaning that any leaks that you have now will be ';leakier'; because of the new oil


    If you don't have a leak now you might after you switch over to synthetics.


    Synthetics are much more expensive.


    And last having an engine that is ';used'; to conventional oil may very well have an adverse reaction to the ';new'; ';different'; kind of oil.


    As we all know oil and water don't mix - in this case oil and oil ';may'; not mix well either.


    My opinion is to change your oil and filter as scheduled with the same type of oil that you are currently using.


    Thumbs up to Dr. Deviance


    Happy Motoring
  • hockey
  • What is the best synthetic oil for a 2004 honda accord v6?

    i have about 34k thousand miles.. and wish to change my oil.. but changing it to synthetic oil...What is the best synthetic oil for a 2004 honda accord v6?
    lots of people like mobil 1 synthetic. keeps engine parts very clean. nice car by the way.What is the best synthetic oil for a 2004 honda accord v6?
    I like Mobil 1 also. 22 bucks 5 qt. jug at wal mart . also Mobil 1 filter about 10 bucks

    Does synthetic oil really last longer between oil changes?

    i've been using Castrol Magnetic 10w40 (Synthetic Blend) oil for long time and thinking about going Shell Hulix Ultra 5w40 fully synthetic oil.





    i change oil/filter every 5000km on castrol oil and now. is it really true that full synthetic oil can go longer miles? if it does what should be my change interval? 7500km? 10000km?Does synthetic oil really last longer between oil changes?
    yes it lasts longer my dad is a master mechanis and i just did a oil change on my car and he told me to get synthetic cuz it goes longer between each oil changes.Does synthetic oil really last longer between oil changes?
    Depends on how you drive. The major killer of motor oil is absorbed moisture. All cars will suck moisture as they heat-up %26amp; cool down, can't be helped. But what can be helped is driving the car long enough to get the oil hot enough that the moisture will evaporate %26amp; get sucked into the PCV valve.





    So if your daily commute is 15 or 20 minutes, and that's most of your driving, you should be changing oil per the owner's manual. If you go to visit Aunt Matilda every Saturday, and that's a 90 minute drive each way, that's more then enough to get the oil up to temp %26amp; clean all that nasty water outta there. Then maybe every 5,000 or even 6,000 miles would do ya.





    If your daily commute is an hour, plus two traffic jams %26amp; a fender bender, that heats things up every day, and you could go every 8 or 9,000 miles.





    Back to school - The advantage of synthetic motor oil is in it's stable viscosity. Thirty weight full synthetic oil is 30 weight at 15 degrees below zero and at 140 degrees in the shade. It doesn't thicken when cold or thin when hot, like conventional oil. It doesn't handle dirt or moisture much better then regular oil. A good oil filter is all you can do for that problem.





    You now have the secret of the ages - Use this knowledge wisely, grasshopper.
    If you put a lot of miles on your car ( 20,000miles / 32000 KM ) a year you can extend your oil change interval to 4000 or 5000 miles easy ( 6400KM to 8000 KM ) on just regular good quality motor oil.


    Have been doing it for years at work and we have enignes with 250,000 miles on them and still going strong on original timing chain, etc. Never had to make any major repairs, 99% still have original valve cover gaskets.


    Vehicles we have with oil change minders from the factory do not turn the light on until 5500- 6000 miles .

    What is the best synthetic oil to use in a VW Jetta?

    also spark plugs and oil filter.What is the best synthetic oil to use in a VW Jetta?
    VW USES CASTROL SYNTHETIC OIL IN TH 1.8T...THEY KNOW THE ENGINE BEST.What is the best synthetic oil to use in a VW Jetta?
    Porsche uses Mobil 1 from the factory...that is good enough for me.
    AGIP Synthetic from 96 and up/ Bosch platinum plugs and and a VW air filter.
    Amsoil is what I use.


    Castrol used to be good but now they don't make oil the same from batch to batch, they use more of what ever additive is the cheepest.





    This question is more of a personal opinion and you will get varied answers.


    just make sure it is 5w40 and it is rated API SL, CI-4, CF





    this is why I use Amsoil.


    http://www.syntheticwarehouse.com/amsoil鈥?/a>





    Oil Filter Information.





    http://www.frankhunt.com/FRANK/corvette/鈥?/a>





    Spark plug Information.


    NGK Iridium are the best In my opinion.


    they are one of the best spark plugs in the market.


    Bosch are at the top of the list also.


    what ever you do, purchase your plugs from a auto parts store and go with Original Equipment Style plugs.


    meaning: Use copper where copper is speced and Platinum and double platinum where they are spec. going to another will greatly reduce your plug, plug wire, coil life, and fuel ecomony.

    Can Synthetic oil change cause clutch slippage?

    I have a BMW 2001 325i, and it was working perfectly till I got an oil change a couple of days ago. From the very first second, after the oil change I could feel the clutch slippage and now I'm wondering how I can fix it!





    The new oil I used is : Castrol Syntec.





    Any help is much appreciated!Can Synthetic oil change cause clutch slippage?
    As long as they flushed the engine fully (it normally needs 3 or 4 flushes) then there won't be a problem.





    If they didn't flush your engine properly, then that's the problem.





    Take the car back to the garage and demand they put it right,





    AndyCan Synthetic oil change cause clutch slippage?
    Motor oil in no way would affect your clutch. Your clutch, in all likely hood, just happened to have clutch issues right after the oil was changed.





    Although, there is one problem that can at times arise when switching to synthetic from standard mineral or petroleum oil. This problem occurs when seals are old and covered in deposits, when the synthetic oil with its superior cleaning abilities come in contact with these seals, the oil will clean away the deposits from the seal and can even cause leaks. The oil does not cause damage to the seals as some will tell you it is just the oil clearing away deposits from seals. Anyway, if this has happened, a seal may have leaked oil inside the bell housing causing clutch slippage. This would seem unlikely though due to the fact that your car is relatively new, but if it is high mileage it could happen. If your car starts to drip oil, look under it with a flashlight, see if you see oil dripping from your bell housing which connects the engine to the transmission. It will have a small drain hole which would allow the oil to drip. This could be what is wrong with your car.
    WHat could be happpening is because of Synthetics ability to flow so well it is possibly leaking out the back of the block onto your clutch. You will want to monitor your oil level... also does it smell like clutch or smell like clutch with oil burning off it. Go back to a nice 10w-40w or 20w -50w and see if it stops.
    The engine oil really doesn't have anything to do with the clutch.

    How many miles can I go on an oil change if I have synthetic oil? How does the synthetic differ ?

    Jiffy Lube makes their cash by pushing every three months or 3k miles.





    There is both a time and distance component to oil changes. I'd start by looking at the owners manual for your vehicle. It may suggest something like every 6months or 5K miles, or for many modern cars, it may be closer to 7500 or 10k miles between changes.





    Modern Passenger Car Motor Oils (PCMO's) are very good and even many non-synthetic oils approach the protection of synthetic lubricants.





    The oil itself NEVER wears out. What wears out in oil is the additives. Things that prevent wear, things that neutralize acids produced in the crankcase by the combustion process, detergents that keep the engines clean and Viscosity Index improvers that allow the oil to flow at a wide range of temperatures, and other additives, this is not an exhaustive list.





    Personally, on my car and a lady friends, both out of warranty, I use Mobil 1 5W30 EP, the 15000 mile oil and change it every 15K miles or 6 months, whichever is first. Both of these cars easily get 10K to 15k miles in this time. I've done a used oil analysis on mine with regular 5W30 Mobil 1 and the oil had plenty of life in it, so I feel confident that 6 months or 15K miles with this oil is easy.





    For my new car, still under warranty, I plan 6 month or 5K mile changes, according to the owners manual, probably with regular Mobil 1. However, almost any high quality, name brand PCMO should be able to protect the engine for this 5K/6month interval.





    If you want to learn more than you ever wanted to know about oil, check the following links. You may need to register to read the forums, I don't recall.How many miles can I go on an oil change if I have synthetic oil? How does the synthetic differ ?
    572ci is correct........ I use Mobil 1 in my Vette, which came in it since new. Also I change filter every 3500 and complete oil change at 7000, the oil is dirty enough at that time...


    Don't use a cheap Fram filter, use Wix, Purolator, or a good micro fine filter.How many miles can I go on an oil change if I have synthetic oil? How does the synthetic differ ?
    Synthetic doesn't sludge up easy.... it has better cold start pumpability, and stands up to higher heat longer..., after warranty I would do extended drains, IF its under warranty that is.... use a high quality oil filter like wix's, (napa gold) NO FRAM!
    25,000 miles








    www.sell2make.com online facilities
    If your car is under warranty, you need to follow their mileage guide. Most new cars are 5,000 miles. If you do not follow this it could void the warranty, and if you ever have a problem you would be on your own.

    Does the benefits of using synthetic oil outweigh the extra cost?

    noDoes the benefits of using synthetic oil outweigh the extra cost?
    If you get a good 100% Synthetic oil like Amsoil or Maxima, you can save a ton. Amsoil is the only oil that backs it up to 25k or 35k miles, depending on which oil you choose, and the application you are using it in. They make the best filters also. I've used it for 11 years now, and I never change my oil before 1 year or 20k miles. I was skeptical at first, but after sending in multiple oil analysis using several oils, Amsoil is the winner. Mobil 1 is good, but it is NOT 100% synthetic, even though it says ';full synthetic on the label. It is a group III hydrocracked at best. Amsoil (except for their XL series which is a blend) is PAO based, and Maxima is Ester based.





    http://www.amsoil.com/storefront/default鈥?/a>Does the benefits of using synthetic oil outweigh the extra cost?
    In the short term the synthetics will not normally create a noticable difference beyond a slight fuel mileage increase, although in the long term it will help prevent buildup and degredation of the engine's performance.
    Definitely for the cost of a ';synthetic blend'; in my opinion. But the real savings come if you keep your cars a long time. I started using Mobil One synthetics in all my cars in 1980. The results have been dramatically good, but I keep all my cars until they ';die'; a natural death (over 200K miles and more). One advantage is an extended oil drain interval. When you compare costs with petroleum based oils, the costs of synthetics are not so much considering you can go 3 times longer on the typical oil change (highway miles assumed!) and get better protection for your engine too.
  • hockey
  • If synthetic oil can be produced, why not synthetic gasoline?

    Why can't the same geniuses who figured out how to make synthetic oil, figure out a formula for (US produced) synthetic gasoline?If synthetic oil can be produced, why not synthetic gasoline?
    Check out Swift Enterprises in Indiana. They make a synthetic aviation fuel (100 octane gasoline) from bio-mass.





    http://www.swiftenterprises.com/Swift%20鈥?/a>If synthetic oil can be produced, why not synthetic gasoline?
    They can, its a matter of cost. How many $$s per quart or gallon is oil Vs gasoline? How much oil do you use in your car each year Vs gasoline? You'll grumble but pay up once or twice a year to pay around twice the price for synthetic oil, but would you pay twice the price for all the gasoline you use every week?
    Then the big oil companys would be out of business. They won't allow that.





    Dennis G

    When changing to synthetic oil, is there any thing special you need to do to remove the old oil ?

    i mean beyond simply draining it...do i just do my oil change as usual?When changing to synthetic oil, is there any thing special you need to do to remove the old oil ?
    There isn't anything special you have to do. I would assume you are looking at a fairly new car. I would NEVER put any kind of flush in my oil, I don't want to risk the engine damage and oils today have a pretty good additive for cleaning. Just drain like a normal oil and filter change and add the syn. Might do a second oil %26amp; filter change early, then keep to your normal schedule. I try to use a better filter because I don't change the syn as aften as the regular oil.When changing to synthetic oil, is there any thing special you need to do to remove the old oil ?
    No - regular and synthetic oil mix just fine. In fact, synthetic blend is a mixture of the two.
    I'd get some motor-flush from your local parts store. You add it to the oil you already have in your crankcase, run the motor for fivee minutes, and then let drain. Change filter and add oil then you are good to go
    first of all u should really make sure that old oil is out of use... then, you can make the engine crankcase cleaned... if you are about to use different brand of oil it can be better. cuz all of the syntethic oil brands are using different octane however mentioned same number. besides, you can clean the mecanism of the engine and items using a high pressure compressor or a wet fabric.. i wish u do it easily
    do it like a normal oil change, then just put the the synthetic oil in
    Flushes are not only NOT needed, they are a waste of money and may hurt the engine (thin the oil, break loose any sludge that may be in the engine and clog the oil pump or small oil holes)








    JUST simply change the oil.......
    no there is nothing special to do and DO NOT FLUSH it. Flushes are bad for your engine. I own and operate 3 quick lube centers and in the 18 years I have owned them I have never used any type of flush nor will I. Just change it like normal and add recommended amount of synthetic oil to your engine.
    no just change oil as usual
    no nothing especially if its a simi-synthetic oil. if its a pure synthetic then make sure you have 50k on the odometer
    Change it as usual, however..


    I would recommend an engine flush before draining, to make sure you get all the gunk out. You can also use standard ATF transmission oil in place of buying one of those expensive treatments. Works just as well, and they do it at places like Jiffy Lube when they run out of Engine Flush. They just dont tell you about it.

    Should I start using synthetic oil?

    I just bought a 2000 Grand AM SE 4cyl with 170,000 KILOMETERS (105000 miles).





    The previous owner had the oil changed every 4000 KM and the engine runs great. Would it be worth it to start using synthetic oil at this point in the cars life and is there anything I need to do other than an engine flush to prep the car for the change over?Should I start using synthetic oil?
    i wouldn't.


    i've heard that synthetic oil is bad for some gaskets.


    probably not yours.


    but if the car is running well, do you really want to upset the apple cart?


    i wouldn't.Should I start using synthetic oil?
    you can change it to synthetic oil it wont hurt nothing, all it does is make the engine last a lot longer,all the stuff you hear about people changing to synthetic and having major problems isn't true,all that oil does is lubricate a lot better and last longer in any engine,and it helps make any engine last longer if its in good shape,it wont hurt it,only help it to last a lot longer,but that's up to you,it cost more than regular oil does,but i have changed a lot of those over to synthetic oil and it hasn't hurt any of them yet,i changed mine over at 120 thousand it actually helped it,good luck.
    You could and your car would probably burn a little oil is all, the regular oil is not all the same the particles are not one uniform size, there are some bigger(that can plug up minor leaks) and some smaller, in synthetic you have all the same uniform size, relatively small, its actually better for your gaskets i think, but if you dont switch to this oil within the first 25 thousand miles, its more or less worthless, i changed my car 160,000 miles on the odometer to synthetic because my friend had extra and it runs fine, Its your call here, I would say a mix is best.
    There are some high mileage synthetic oils that have additive packages to help stop the leaks that may form. With synthetic oils all the molecules are the same size to help flow better. just as another user said before it is loaded with detergents to clean out sludge and may clean so much that tiny cracks in the gaskets are exposed and this is where the leaks from the gaskets come from that they were talking about. The oils with the high mileage additives have chemicals that swell the gaskets up to stop the leaks from forming. Valvoline max-life synthetic is one of the best synthetic oils out there (4x better than Mobil 1) and it has the additive package i was talking about.
    Yu don't want to use full synthetic oil in a car with high mileage because it has detergents in the oil than will clean away deposits that create seal in the gasketed areas and metal pits. This will result in oil leaks. I recommend using a semi synthetic oil such as castrol gtx or similar.
    yes it keeps the friction down and helps cool the engine.
    ok????

    Do I have to continue using synthetic oil?

    I did an oil change on my 2006 Chevy Silverado and used synthetic oil, I'm just wondering if i have to continue using synthetic oil in future oil changes.Do I have to continue using synthetic oil?
    no you don't have to use synthetic oil, you can change to regular oil anytime you want when you get the oil and filter changed.Do I have to continue using synthetic oil?
    You should always use a synthetic oil. I don't even know why they make regular oil anymore, except for use in Mazda rotary engines. The synth oil lasts longer, protects better, and continues to clean the engines vitals inside as you drive. It pretty much keeps your PCV system clean and gives the best gas mileage. A good syth oil like Mobil One, Amzoil, or ELF can last for 2 years, if your car is in tune. Just change it when it gets thick or really dark.
    Synthetic is overpriced oil to me. I seen them go neck to neck in testing. When you run stock cars, we watched Synthetic fall to the waste side. These are rebuilt 350 motors in old street cars. The conventional oil was in a Oldsmobile. (Oldsmobile are known for a hotter running motor.) Synthetic only lasted 2 nights and conventional made 10 nights.





    Why spend 5 bucks a quart and 1.50 does the same.
    No you don't but a cheap synthetic beats a high priced conventional oil. Now if you're gonna go to a cheap conventional then so be it.





    It will be absolutely fine. Don't listen to any garbage about staying with what it came with, etc. There are myths propegated by people with more opinion than knowledge.





    Further, an oil change inverval of 5000 miles is much more appropriate for today's finer oils than a 3000 mile oil change is. This is good for either syn or conventional.
    you will be fine. i used it in my integra for 2 years when i got it cheap working at goodyear and then stopped cuz it was too expensive to continue in a 15 year old car. but it had 140k when i started and 199k when i stopped and i had no problems
    Not really...with synthetic you don't have an oil break down problem that requires more frequent oil changes...
    its all good buddy

    Should I use Synthetic Oil for my 2007 Honda Civic Si?

    About to do my first oil change for my New Civic Si. Should I use synthetic oil and if so which one is the better one to use?Should I use Synthetic Oil for my 2007 Honda Civic Si?
    It might be a good idea to look in the owners manual first


    and see what is recommended from there.Don`t just go


    and put anything into your car,you may do more harm than


    good.Most of the modern cars will take synthetic oil but


    it won`t hurt to make sure that its ok to use.Should I use Synthetic Oil for my 2007 Honda Civic Si?
    Yes, a synthectic like Mobile 1 or castrol would be best, use A multi-grade, like 20w-50w
    I say wait longer. If it's your first oil change, the motor may not be fully broken it. Synthethtic is made up of smaller molecules. I say wait til 6 or 7K miles. Plus if you make the switch to synthetic stick to it to take full advantage of the syn. properties.
    A few thousand miles is the perfect time to switch to a synthetic. A high-performance car like yours will benefit since the extra heat created will not break the oil down. Look into Amsoil, see how it compares to Mobil-1 and others: http://www.amsoil.com/lit/g1971.pdf





    Anyway check out these two oils for your car 0W-30: http://www.amsoil.com/lit/databulletins/鈥?/a>





    5W-30: http://www.amsoil.com/lit/databulletins/鈥?/a>





    I got the following info from my website http://www.number1synthetic.com


    after clicking 'Amsoil Online Product Guide' and entering the info you gave on your car:





    2007 HONDA CIVIC 2.0L 4-cyl Engine Code K20Z3





    FILTERS


    Oil Filter: EAO13 Absolute Efficiency Oil Filter





    Oil Filter: 51356 WIX 51356 Oil Filter


    Air Filter: 49120 WIX 49120 Air Filter


    Fuel Filter: NS


    Trans Filter: MT [1]


    Cabin Filter: 24815 WIX 24815 Cabin Air Filter





    1. Manual Transmission








    NGK PLUGS %26amp; WIRE SETS


    Wire Set.......... WIRESET N/R N/R [1]





    1.No Wires Req'd











    LUBRICANTS %26amp; FLUIDS


    Engine Oil


    Grade 1......API*


    SAE 0W-30 Synthetic Signature Series Oil


    SAE 5W-30 Synthetic Motor Oil


    SAE 5W-30 XL Synthetic Motor Oil


    All Temps......5W-30


    Manual Transmission,.....GLS[1]


    AMSOIL Synthetic Synchromesh Transmission Fluid


    Automatic Transmission,CVT.....VTF


    Automatic Transmission,AT.....SLF[2]


    Synthetic Automatic Transmission Fluid





    1. Honda MT fluid, P/N 08798-9016


    2. SLF is Honda ATF-Z1 Automatic Transmission Fluid, Part No.


    08200-9001

















    CAPACITIES


    Engine, with filter..........4.7 quarts


    Cooling System, W/ AT W/ 2DOOR Initial Fill..........5.8 quarts


    AMSOIL Antifreeze and Engine Coolant


    Cooling System, W/ MT W/ 2DOOR Initial Fill..........5.5 quarts


    AMSOIL Antifreeze and Engine Coolant


    Cooling System, W/ AT W/ 4DOOR Initial Fill..........5.6 quarts


    AMSOIL Antifreeze and Engine Coolant


    Cooling System, W/ MT W/ 4DOOR Initial Fill..........5.5 quarts


    AMSOIL Antifreeze and Engine Coolant


    Automatic Transmission, Initial Fill..........2.5 quarts


    Manual Transmission, ..........3.2 pints








    Good luck!

    I would like to use pennzoil platinum synthetic oil for my next oil change?

    i have a '98 mazda millenia 2.5L v6.....i've never used any synthetic oil for this car.





    would it be bad if i did?





    would it be for the better?





    if i do, will is the next time i need to change my oil? (miles/months)





    thanks allI would like to use pennzoil platinum synthetic oil for my next oil change?
    the general consensus is if you're using synthetic that it will last longer and most people will do a full synth oil change every 10k or so but will change the filter every 3 months/ 3000 miles and top off the oil at those intervals.





    Pennzoil platinum is a good synthetic oil to use for cost and performance. I don't see any problems for using it in your car. For more information there are guys who know better than me at this adress http://www.bobistheoilguy.com/. You'll get more detailed information that wayI would like to use pennzoil platinum synthetic oil for my next oil change?
    you can change it to synthetic ,that's the best thing you can do for your car,and you can run a lot longer on an oil change also,id run it at least around 7500 miles before i changed it that oil is meant to take it,its the best thing you will ever do for your car,good luck with it.
    As long as it meets the requirments for your engine - go ahead.





    But not changing your oil every 3000 miles is the worst idea ever.





    It still breaks down, and will not lube properly, spend the 40.00 and save the 2000, for the new engine.
    you can use any motor oil in your car as long as it meets the manufacturers specs, which includes every major name brand oil out there. it will not harm your car to use synthetic this oil change and regular motor oil the next. synthetics may cause an existing oil leak to leak a little worse due to it's smaller molecular structure, but that's about the worse that could happen. use it if you like. I would say the oil type myth is a wives tale but it was really started by old farts that use shade trees instead of taking their vehicles to a good mechanic.


    as for benefits, you may save a little fuel, it lubricates the engine faster and better, it won't break down (the oil, not the car) if you over heat the engine, you can extend your changes to 5 or 6k miles.
    check out this link on extended drain intervals: http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>


    includes comments by GM
    Personaly i'd use Castrol,thats up to you but i use it and nothing else.
  • hockey
  • Is synthetic oil really better than regular oil?

    There's such a difference in price....Is synthetic oil really better than regular oil?
    All of the manufacturers of synthetic oil tout the benefits of reduced wear, more horsepower, lower operating temperatures, and improved fuel mileage. All of these benefits are derivatives of better cold flow characteristics and higher levels of friction reducing additives that are found in synthetic oils. I can confirm better cold driving characteristics, increased fuel mileage of nearly 10%, noticeably lower operating temperatures, better heat dissipation capability, and long term high temperature stability based on my own experience with synthetic lubricants. Are these benefits enough, however, to persuade average drivers to give up their trusted petroleum oils and pay the extra price for synthetics? Enthusiasts, yes. Average drivers, perhaps not. However, synthetic lubricants can endure extended drain intervals, which is a major consideration toward justification of the higher costs. This benefit is not widely promoted by the major oil producers most likely because they want you to pay a premium for their synthetic oils every 3000 miles just like their regular oils. Most companies don鈥檛 bother to tell you that synthetic oils are capable of going 25,000 miles or more without significant breakdown.Is synthetic oil really better than regular oil?
    Well SigGirl, you're talking about something 'dirty', full of randomly sized and shaped molecules vs. something pure and uniform that was engineered in a lab. Even after refining, petroleum oils still contain molecules that are undesirable for lubrication purposes. These impurities only help to speed up the 'breakdown' or chemical change of the oil. This, and the synthetic molecule's resistance to thermal and oxidative breakdown, is why synthetics last longer. Here is some more info on the subject: http://www.amsoil.com/lit/g52.pdf


    Good luck! My website: http://www.number1synthetic.com


    featuring Amsoil synthetic lubricants
    while you may not always need it, synthetic is much better in a lot of circumstances.





    Harder to break down, resists temperature better,





    You don't always need it, but if your going for performance or don't change your oil as often as you should its worth it.
    I agree with what Yoda O says exactly, but will add, why synthetic is more pricey its made by man, and makers had to spend millions to produce it, where as normal mineral oil comes from the ground.
    Synthetic oils are better for most applications, except brand new engines and high milage engines with wear. Any engines that have oil leaks will leave one hell of a mess with synthetic oil.
    I agree with Yoda O. If you have a leak, the synthetic oil will slurp out in no time.

    Is full synthetic oil worth the extra cost?

    And what about the partial synthetic oils? Thanks.Is full synthetic oil worth the extra cost?
    Regular motor oil degrades over time due to the extreme heat and shear stress of moving engine parts.





    As the oil degrades it loses its lubrication properties slowly and engine performance suffers.





    Synthetics are more able to handle the heat and shear stress of moving engine parts and degrade much much slower. Whereas after 5000 miles ordinary oil would have degraded by as much as 25%, Synthetics would only have loss less than 10%.





    The synthetic oil would still retain most of its lubricating properties much much longer than petroleum based mineral oils but the problem is that the longer you keep the oil in the engine, the more dirt gets suspended in it. In time, even if the oil is still good, you need to replace it because its too dirty.





    Normally, you can extend service life to a little more than twice as that of petroleum based mineral oil before going for an oil change. The oil may still be good but you need to flush the dirt out.





    Semi-synths gives you best of both worlds. It gives you the much the same benefits of better lubrication as that of full synths but at a much cheaper price. Regular oil change periods still apply.





    Its all up to you. Going synthtetic gives you the benefit of 2 regular oil changes. You get the convenience of saving a trip to the lube shop for every oil change. Determine your costs for every oil change and check whether the savings or the extra cost is worth this convenience.Is full synthetic oil worth the extra cost?
    sure.
    No, because you are going to change the oil in 5k miles anyway.... you can get just as many miles out of an engine useing conventional motor oil as using synthetic. My dad has more than 300K on his 2001 Intrepid and he using only regular motor oil.
    I had just finished searching on line about the pros and cons of synthetic oils. The information I found was the conventional oil was just as good unless you have a race car or operate under extreme temperature conditions. I was considering using it in my new truck, but have now decided against it as to keep the warranty in effect I have to follow the manufactures guidelines and the synthetic would cost more as I would still have to have the same number of oil changes.


    I am just going to take my truck to the dealer and stay with the conventional oil.
    The main benefits to synthetic oil is that it doesn't break down over time, tends to stay cleaner longer, and handles the higher temperatures better than standard petroleum oils.





    The extra cost comes mainly from the manufacturing process, so it's a matter of whether you want to try leaving oil in your crank case for extended periods of time...me, I'm from the old school of regular maintenance, so I just use regular oil, and change it and the filter every couple months, a $12 cost...





    Partial synthetics are a trade off, and seem more of a money maker to me, than beneficial...
    Depends on your engine. If its an engine with 100k miles on it no. Full synthetic tend to have a laxative effect on older engines making them more susceptible to leak.





    If its a new engine no, because you want to break it in on conventional unless otherwise stated by the manufacturer.





    Now if its a fairly new engine, meaning broken in, then yes. You don't have to change the oil as often, and you get a slight increase in hp, very slight. The friction is reduced by full synthetic.
    If you start using it when the car is new, or fairly new, then yes, it is worth it. However, synthetics are thinner than regular oil. If you begin to use them in an engine with 50k + miles, you can cause more harm than good.





    Start with synthetics when the car is new, and they will give you far less engine wear.
    Yes/No





    Synthetic oils have certain properties that inhibit wear on interanal engine parts. Synthentic Oil also claims that you can change your oil every 6 or 12K instead of the normal 3K. But in actuality how long are you planning to keep your car. Most cars are sold or traded after 5 years or 100K. Standerar motor oil even the cheap superteach stuff will do very well. Recently they have benchtested standered motor oils and found virturally no difference as long as it has the ASTM symbol on the back.
    full synthetic is the best for your engine, it helps prolong the life of your engine. partial is good, not as good as full. it has some of the same benefits but on a smaller scale. it really depends on how you maintain your vehicle. if you drive a beater, i wouldnt recommend paying extra for synthetic. but if you drive a car you want to last you a long time, synthetic could be a smart move.
    There are varying opinions about synthetic motor oil. I used it once and had a bad experience so I don't use it at all. The positive note on sythetic oil is that it lasts longer so you don't have to change it as often. The negative, of course, is the price. I just use petro-based motor oil and change it every 3000 miles or 3 months. The chain auto parts places put this stuff on sale all the time so it's relatively cheap, no excuse for not changing it regularly. If you don't wish to change your own oil, there are many places that will do it for twenty bucks or so. I don't like to leave oil in an engine too long, synthetic or not. Acids and combustion byproducts contaminate the oil and make it less effective over time and, if you have a turbocharged engine, oil should be changed even more often due to the intense heat generated by the turbocharger. I have no experience witht the partial synthetics.
    According to my friend, who is a Diesel mechanic, full synthetic motor oil isn't worth it because it's better at protecting your engine than regular motor oil in some ways but worse in others. He recommends Valvoline DuraBlend for the best of both worlds. There is only one exception to that rule: If you have a brand new car, you need to break the engine in with regular motor oil for the first 10,000 miles so the valves and rings will seat properly (he recommends changing the oil at 1,000 miles; 4,000 miles; and 7,000 miles), then switching to DuraBlend at 10,000 miles.

    Should put synthetic oil in my old car?

    I have a 1998 Saturn SLS1 and it is burning oil. Should i replace my current oil with synthetic or not? It has 185k miles on it.Should put synthetic oil in my old car?
    No. The others are very accurate. Don't waste your money.


    You have a few miles on it and it's burning oil. Look for a 40 or 50W to put in in it. A multiple viscosity 20-50W is ideal. It's not going to stop the burning, it will slow it down until it hits the graveyard.


    20-50, 30-50 and 50 are essentially the same oil. The numbers refer to kinematic viscosity. There is some benefit to multiple viscosity ones especially in a small motor, but get 20-50 if you can find it...cheap is OKAY.Should put synthetic oil in my old car?
    HI


    No .. if your already burning oil its not going to stop it and cost more to replace . In fact it may in cress oil loss. as it is thinner and well seep out of some of the gaskets and such...


    good luck


    tim
    If you're burning oil I would use an additive such as Lucas. Synthetic oils are slicker and would leak out faster.
    If it's burning oil, don't waste money on synthetic oil.





    Get a ring job.
    nope, changing now will only create problems

    Is synthetic oil really better than regular oil?

    There's such a difference in price....Is synthetic oil really better than regular oil?
    All of the manufacturers of synthetic oil tout the benefits of reduced wear, more horsepower, lower operating temperatures, and improved fuel mileage. All of these benefits are derivatives of better cold flow characteristics and higher levels of friction reducing additives that are found in synthetic oils. I can confirm better cold driving characteristics, increased fuel mileage of nearly 10%, noticeably lower operating temperatures, better heat dissipation capability, and long term high temperature stability based on my own experience with synthetic lubricants. Are these benefits enough, however, to persuade average drivers to give up their trusted petroleum oils and pay the extra price for synthetics? Enthusiasts, yes. Average drivers, perhaps not. However, synthetic lubricants can endure extended drain intervals, which is a major consideration toward justification of the higher costs. This benefit is not widely promoted by the major oil producers most likely because they want you to pay a premium for their synthetic oils every 3000 miles just like their regular oils. Most companies don鈥檛 bother to tell you that synthetic oils are capable of going 25,000 miles or more without significant breakdown.Is synthetic oil really better than regular oil?
    Well SigGirl, you're talking about something 'dirty', full of randomly sized and shaped molecules vs. something pure and uniform that was engineered in a lab. Even after refining, petroleum oils still contain molecules that are undesirable for lubrication purposes. These impurities only help to speed up the 'breakdown' or chemical change of the oil. This, and the synthetic molecule's resistance to thermal and oxidative breakdown, is why synthetics last longer. Here is some more info on the subject: http://www.amsoil.com/lit/g52.pdf


    Good luck! My website: http://www.number1synthetic.com


    featuring Amsoil synthetic lubricants
    while you may not always need it, synthetic is much better in a lot of circumstances.





    Harder to break down, resists temperature better,





    You don't always need it, but if your going for performance or don't change your oil as often as you should its worth it.
    I agree with what Yoda O says exactly, but will add, why synthetic is more pricey its made by man, and makers had to spend millions to produce it, where as normal mineral oil comes from the ground.
    Synthetic oils are better for most applications, except brand new engines and high milage engines with wear. Any engines that have oil leaks will leave one hell of a mess with synthetic oil.
    I agree with Yoda O. If you have a leak, the synthetic oil will slurp out in no time.

    I would like to use pennzoil platinum synthetic oil for my next oil change?

    i have a '98 mazda millenia 2.5L v6.....i've never used any synthetic oil for this car.





    would it be bad if i did?





    would it be for the better?





    if i do, will is the next time i need to change my oil? (miles/months)





    thanks allI would like to use pennzoil platinum synthetic oil for my next oil change?
    the general consensus is if you're using synthetic that it will last longer and most people will do a full synth oil change every 10k or so but will change the filter every 3 months/ 3000 miles and top off the oil at those intervals.





    Pennzoil platinum is a good synthetic oil to use for cost and performance. I don't see any problems for using it in your car. For more information there are guys who know better than me at this adress http://www.bobistheoilguy.com/. You'll get more detailed information that wayI would like to use pennzoil platinum synthetic oil for my next oil change?
    you can change it to synthetic ,that's the best thing you can do for your car,and you can run a lot longer on an oil change also,id run it at least around 7500 miles before i changed it that oil is meant to take it,its the best thing you will ever do for your car,good luck with it.
    As long as it meets the requirments for your engine - go ahead.





    But not changing your oil every 3000 miles is the worst idea ever.





    It still breaks down, and will not lube properly, spend the 40.00 and save the 2000, for the new engine.
    you can use any motor oil in your car as long as it meets the manufacturers specs, which includes every major name brand oil out there. it will not harm your car to use synthetic this oil change and regular motor oil the next. synthetics may cause an existing oil leak to leak a little worse due to it's smaller molecular structure, but that's about the worse that could happen. use it if you like. I would say the oil type myth is a wives tale but it was really started by old farts that use shade trees instead of taking their vehicles to a good mechanic.


    as for benefits, you may save a little fuel, it lubricates the engine faster and better, it won't break down (the oil, not the car) if you over heat the engine, you can extend your changes to 5 or 6k miles.
    check out this link on extended drain intervals: http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>


    includes comments by GM
    Personaly i'd use Castrol,thats up to you but i use it and nothing else.

    Should put synthetic oil in my old car?

    I have a 1998 Saturn SLS1 and it is burning oil. Should i replace my current oil with synthetic or not? It has 185k miles on it.Should put synthetic oil in my old car?
    No. The others are very accurate. Don't waste your money.


    You have a few miles on it and it's burning oil. Look for a 40 or 50W to put in in it. A multiple viscosity 20-50W is ideal. It's not going to stop the burning, it will slow it down until it hits the graveyard.


    20-50, 30-50 and 50 are essentially the same oil. The numbers refer to kinematic viscosity. There is some benefit to multiple viscosity ones especially in a small motor, but get 20-50 if you can find it...cheap is OKAY.Should put synthetic oil in my old car?
    HI


    No .. if your already burning oil its not going to stop it and cost more to replace . In fact it may in cress oil loss. as it is thinner and well seep out of some of the gaskets and such...


    good luck


    tim
    If you're burning oil I would use an additive such as Lucas. Synthetic oils are slicker and would leak out faster.
    If it's burning oil, don't waste money on synthetic oil.





    Get a ring job.
    nope, changing now will only create problems
  • hockey
  • Currently what car models are using synthetic oil from the factory?Who's suppling the synthetic oil?

    I know the Corvette requires synthetic oil, it requires Mobil 1. The newer style GTO and Camaro's/TA's also used the same. They have a plaque in the engine bay that says to use it, mostly the LS-series motors...Currently what car models are using synthetic oil from the factory?Who's suppling the synthetic oil?
    cadillac uses mobil 1Currently what car models are using synthetic oil from the factory?Who's suppling the synthetic oil?
    I know Ford and GM cars are. They use Mobil.
    alot of modern cars do heres just some - vw, audi, skoda, bmw, renault, mercedes %26amp; ford - i could be more specific but i dont have until next week - if theres a certain car model your intrested in finding out about email me or carrepairshelp@yahoo.co.uk (thats my works email)
    the corvette uses it from the factory and they use mobil 1.

    Is full synthetic oil worth the extra cost?

    And what about the partial synthetic oils? Thanks.Is full synthetic oil worth the extra cost?
    Regular motor oil degrades over time due to the extreme heat and shear stress of moving engine parts.





    As the oil degrades it loses its lubrication properties slowly and engine performance suffers.





    Synthetics are more able to handle the heat and shear stress of moving engine parts and degrade much much slower. Whereas after 5000 miles ordinary oil would have degraded by as much as 25%, Synthetics would only have loss less than 10%.





    The synthetic oil would still retain most of its lubricating properties much much longer than petroleum based mineral oils but the problem is that the longer you keep the oil in the engine, the more dirt gets suspended in it. In time, even if the oil is still good, you need to replace it because its too dirty.





    Normally, you can extend service life to a little more than twice as that of petroleum based mineral oil before going for an oil change. The oil may still be good but you need to flush the dirt out.





    Semi-synths gives you best of both worlds. It gives you the much the same benefits of better lubrication as that of full synths but at a much cheaper price. Regular oil change periods still apply.





    Its all up to you. Going synthtetic gives you the benefit of 2 regular oil changes. You get the convenience of saving a trip to the lube shop for every oil change. Determine your costs for every oil change and check whether the savings or the extra cost is worth this convenience.Is full synthetic oil worth the extra cost?
    sure.
    No, because you are going to change the oil in 5k miles anyway.... you can get just as many miles out of an engine useing conventional motor oil as using synthetic. My dad has more than 300K on his 2001 Intrepid and he using only regular motor oil.
    I had just finished searching on line about the pros and cons of synthetic oils. The information I found was the conventional oil was just as good unless you have a race car or operate under extreme temperature conditions. I was considering using it in my new truck, but have now decided against it as to keep the warranty in effect I have to follow the manufactures guidelines and the synthetic would cost more as I would still have to have the same number of oil changes.


    I am just going to take my truck to the dealer and stay with the conventional oil.
    The main benefits to synthetic oil is that it doesn't break down over time, tends to stay cleaner longer, and handles the higher temperatures better than standard petroleum oils.





    The extra cost comes mainly from the manufacturing process, so it's a matter of whether you want to try leaving oil in your crank case for extended periods of time...me, I'm from the old school of regular maintenance, so I just use regular oil, and change it and the filter every couple months, a $12 cost...





    Partial synthetics are a trade off, and seem more of a money maker to me, than beneficial...
    Depends on your engine. If its an engine with 100k miles on it no. Full synthetic tend to have a laxative effect on older engines making them more susceptible to leak.





    If its a new engine no, because you want to break it in on conventional unless otherwise stated by the manufacturer.





    Now if its a fairly new engine, meaning broken in, then yes. You don't have to change the oil as often, and you get a slight increase in hp, very slight. The friction is reduced by full synthetic.
    If you start using it when the car is new, or fairly new, then yes, it is worth it. However, synthetics are thinner than regular oil. If you begin to use them in an engine with 50k + miles, you can cause more harm than good.





    Start with synthetics when the car is new, and they will give you far less engine wear.
    Yes/No





    Synthetic oils have certain properties that inhibit wear on interanal engine parts. Synthentic Oil also claims that you can change your oil every 6 or 12K instead of the normal 3K. But in actuality how long are you planning to keep your car. Most cars are sold or traded after 5 years or 100K. Standerar motor oil even the cheap superteach stuff will do very well. Recently they have benchtested standered motor oils and found virturally no difference as long as it has the ASTM symbol on the back.
    full synthetic is the best for your engine, it helps prolong the life of your engine. partial is good, not as good as full. it has some of the same benefits but on a smaller scale. it really depends on how you maintain your vehicle. if you drive a beater, i wouldnt recommend paying extra for synthetic. but if you drive a car you want to last you a long time, synthetic could be a smart move.
    There are varying opinions about synthetic motor oil. I used it once and had a bad experience so I don't use it at all. The positive note on sythetic oil is that it lasts longer so you don't have to change it as often. The negative, of course, is the price. I just use petro-based motor oil and change it every 3000 miles or 3 months. The chain auto parts places put this stuff on sale all the time so it's relatively cheap, no excuse for not changing it regularly. If you don't wish to change your own oil, there are many places that will do it for twenty bucks or so. I don't like to leave oil in an engine too long, synthetic or not. Acids and combustion byproducts contaminate the oil and make it less effective over time and, if you have a turbocharged engine, oil should be changed even more often due to the intense heat generated by the turbocharger. I have no experience witht the partial synthetics.
    According to my friend, who is a Diesel mechanic, full synthetic motor oil isn't worth it because it's better at protecting your engine than regular motor oil in some ways but worse in others. He recommends Valvoline DuraBlend for the best of both worlds. There is only one exception to that rule: If you have a brand new car, you need to break the engine in with regular motor oil for the first 10,000 miles so the valves and rings will seat properly (he recommends changing the oil at 1,000 miles; 4,000 miles; and 7,000 miles), then switching to DuraBlend at 10,000 miles.

    Mobil 1 Synthetic oil for a 1996 Nissan Maxima?

    I have a 9 maxima with around 102k miles on it. The previous owner used regular oil at the jiffy lube. However i would like to change the oil myself using mobil 1 Synthetic oil. I hear that it keeps the engine clean and running smoothly.





    I just want to know is it okay to change now? Any feedback?Mobil 1 Synthetic oil for a 1996 Nissan Maxima?
    10w-30 Mobil 1 would be a good choice for oil. It's highly recommended by the guys at maxima.org whether it's full synthetic or not.





    Don't buy any crap about your engine having ';quite a bit of wear'; that thing has hardly any miles on it seeing as it's a VQ30DE, it and the previous VG30 engine are known to last 200K miles or more before a rebuild and often over 300K. There is no reason not to change aside from price. Which is why my 94 gets regular Mobil 1 which is partially synthetic from what I hear.Mobil 1 Synthetic oil for a 1996 Nissan Maxima?
    Please keep the oil as it was. Mobil One synthetic has smaller molecules that may leak past engine seals and the motor has come 102 thousand miles on bulk oil just use a good quality Pennzoil or Quaker State petroleum based oil. The most important thing is to change oil every 3 to 4 thousand miles and use Nissan Oil Filters. With the correct weight oil in the owners hand book. In Texas we like to use 10 wt x 40 wt up in Maine they might want to use 5wt x 30 wt.
    It is ok to use synthetic in that. It used to be in the old days you couldn't switch from conventional to synthetic and vise versa. With that many miles I would suggest using 10w 30. You may want to even consider a synthetic blend since synthetic is so expensive and you really aren't going to benefit that much.
    I wouldn't switch. Your engine has quite a bit of wear. Synthetic oil is thinner than regular oil, and will be more likely to get by the rings, causing your older engine to burn oil. Just change it regularly with a good regular oil.





    The switch to synthetic should be made between 10k and 40k miles, IMO.

    Is it alright to put synthetic oil in my van?

    Some say synthetic oil is for high performance engines only, others say to get tuned up first, but most people say it is not a problem to make the jump. My van is a 93 Safari with 185K on her and she's due for an oil change. I recently tried slick 50 in my oil and she was not happy, but I'm just hoping to find some reassurance in trying something new with synthetic.Is it alright to put synthetic oil in my van?
    I recommend it. but first motor flush all the old oil and sludge out. Use Amsoil crankcase cleaner or Seafoam. Mileage really means very little. Modern engines are made to such great tolerances because of emissions requirements, that wear is reduced. Slick 50 is a waste of money, because teflon only reacts with aluminum. And, it doesn't really do THAT very well. It can cause seal leaks. Regular oil ALWAYS makes sludge somewhere. Synthetic oils are just oils with longer hydrocarbon chains and higher doses of detergent. They handle heat and stress much better and the best of them produce NO sludge. Try Pennzoil Platinum after motor flushing with butyl cello-solve. It cleans while you drive. ONLY use it if the label states on it that it ';meets GM specifications.'; everyone gets fooled by the API service ratings. There is MORE to oil than that. Modern oils are car-maker specific. Royal Purple, e.g., has NO car-maker approval. Always, READ the label and match the spec's to your owner's manual fluid specifications. Use Mobil One, Amsoil, or ELF oil, but only if the label mentions GM on it somewhere. GET IT???Is it alright to put synthetic oil in my van?
    thats his answer for everything Report Abuse

    With 185000 miles on the clock I don't think synthetic oil is the best choice. Synthetics work best in new engines from new where their high lubrication qualities are most appreciated in engines built to close tolerances. You should use a good quality multi-grade oil with sufficiently high viscosity to cling to engine parts over a wide temperature range. You should put an engine cleaner into the existing oil first and run it for a day or two. Drain out and fill with the multi-grade. Always fit a new oil filter and change the oil and filter more frequently than recommended, say every 10,000 miles. That will protect and care for your engine far better than just putting in a synthetic oil.
    It's not recommended on vehicles with that many miles because the clearances in the bearings and stuff are a lot ehhhh looser? It may not provide adequate lubrication in those spots, but the rest of the engine would be ok. If you do, might want to use a thicker oil. In that situation I'd go with a synthetic blend.
    The guys are right about high mileage vehicle. You will have leaks and will be wasting your money. If you really like the van, you may want to have it rebuilt and replace all the seals and bearings and use synthetic after the break in period.
    dont need it really if you replace your oil right and when most car avble to go into the 400,000 range if right care is giving
    My two cents:





    I've been using regular oil for YEARS, and haven't had a problem.


    With something that old with that many miles, why change now?
    Wasting your money. Get a semi synthetic high mileage oil. It is not only better, but also will cut your consumption
    with 185k put LUCAS in with your oil

    Is synthetic oil good for my 1987 ford mustang gt convertible?

    YES, YES, YES!!! Synthetic oil is good for ALL cars!!!!! It keeps the crankcase cleaner, removes dirt as you drive, can handle heat and stress better, and only needs changing once every year or so. I recommend Mobil One 0W-30 for you. You save gas, too. Forget regular oils. Pretend they don't exist!!!

    Can you switch from synthetic oil to standard oil when you change a cars oil?

    If you have been using synthetic oil, why switch to conventional oil at all??? All conventional oils will inevitably create sludgy deposits and will eventually require de-sludging treatments. You are much farther ahead by sticking with synthetic. Oil change intervals last longer and the protection at extremes of temperature is unsurpassed!!! Conventional oil gives off vapors that re-condense in places in your engine that cause trouble, eventually. Synthetic oils give off little to no vapors. Economically speaking, you end up saving money in the long run by continued use of synthetics. Oils do 2 things, lubricate and clean. Synthetic oils (mobil one or better) do these jobs best. Synthetic oils can prolong engine life by 2-3 times. Don't risk it!Can you switch from synthetic oil to standard oil when you change a cars oil?
    -Can you switch from synthetic oil to standard oil when you change a cars oil?
    Yes. Any SF/SG rated oil can be interchanged. Try not to mix them in each oil change unless you are already using the synthetic blends.
    Yes, but if your car requires synthetic (some, like turbo cars, do), keep using synthetic. It will take a couple of oil changes to clear all the synthetic out of the system, but they are compatible.
    no, simply no
    yes, it won't hurt a thing, the only thing is if your car is older and uses or leaks oil it will use it faster with synthetic.
    yes u can switch.
    I agree with RobertM. we had a young lady who didn't know her car took synthetic and we used regular oil and it smoked terrible until we replaced the oil wit synthetic. so If you are using it now stay with it it could void any warrenties or recalls by dealerships for your car at anytime.
    NO, if your car came with synthetic oil in it at new it obviously needs it ,putting standard oil in wont have the right mineral content to coat ur engine parts correctly,stick to synthetic
    i agree with rotus
  • hockey
  • Is it ok to change a car from oil to synthetic oil at 100,000 miles?

    I just bought a 98 Grand cherokee and it has almost 100,000 miles on it. Will it be ok if i make it synthetic oil now?Is it ok to change a car from oil to synthetic oil at 100,000 miles?
    As an AMSOIL dealer and user, I have been asked this question many times, yes, but only if your vehicle does not burn or leak oil. As to the cost yes it costs more. but with AMSOILs 25,000 mile change schedule, yes research has been done and proven to be OK, the cost come in line with non synthetic oil. Also engine wear is decreased, extending the life of your engine. Environmentally there is less waste oil and pollution in the air, better gas mileage, less friction and heat. Whats to question?Is it ok to change a car from oil to synthetic oil at 100,000 miles?
    Yes, it will be ok
    yes it will be good for the engine
    No problem. I was thinking about a high mileage oil for mine.
    The change is no problem but not a wise choice if the engine is already using any appreciable amount of oil due to the cost factor..
    Castrol Oil says,';Yes, it is okay.';
    go fot it change everything to synthetic
    Synthetic oil is way too expensive. There's nothing stopping you, but you have to ask yourself what the benefits would be of doubling the cost of oil for a car that already has 100,000 miles on it. I considered changing to synthetic in my Neon to get better fuel mileage, but the shop I go to told me that it wasn't worth it. Simple math tells you that, but I had no idea how much synthetic oil costs until they told me. You will most likely never recover the cost and you will probably see no benefit. That's what I have determined, anyway.
    OF COURSE!!!, and don't believe the crap about not being able to mix syn and conventional or changing back to conv. after syn....








    NOW syn does not cover up pre existing leaks that conventional has maybe with either sludge or seal swelling.








    I'd go for it, you can always change it back.
    yeah, but once you go synthetic you cannot go back
    DirtyDog has the correct answer, if you switch oils.





    If that Grand Cherokee has the 4.0 Six, I strongly recommend the change.
    When switching to synthetic oil in higher mileage vehicles, its best to have an initial short (2,000 to 3,000 miles) oil change, both oil and filter. This will allow the synthetic oil to clean some of the engine deposits that have accumulated over time. Following this initial short oil change, continue with your normal oil change interval.
    synthetic oil is better than ordinary oil, specially on old cars.its better to change it.
    The change to synthetic itself will do no harm but because it will cost much more, the switch at this mileage will not be advantageous as the wear of the engine will consume more oil. It works better with a new motor.

    What is the difference between synthetic oil and mineral oil?

    please, eleaborate in details if possible?What is the difference between synthetic oil and mineral oil?
    Well, 'Mineral oil' is derived from crude oil and 'synthetic oil' is not.





    Since 'mineral oil' is an oil 'distillate' it tends to be less stable when exposed to high heat than 'synthetic oil'.





    Many people are not aware that much of our synthetic oil technology is from WW2 Nazi technology.





    As a rule synthetic oil is superior to crude based oil and is specifically required in many high performance and high load/friction engines.





    Hope this answers your question.What is the difference between synthetic oil and mineral oil?
    synthetic oil is man made and far superior to plain oil.
    type about synthetic oil


    type about mineral oil





    into search box
    ';Mineral';, or conventional oil is made from refined crude oil, from the ground.





    Synthetic oil is man-made and is superior. It offers greater lubricity and lasts longer.





    Wow, what a bunch of garbage answers you're getting. You can always depend on the ignorant know-it-alls to surface their ugly heads when oil is brought up.
    see synthetic is man made,and mineral oil is the one that we get from the minerals .thats it so simple!!!!!!!!!!

    Can you switch back to regular oil after using the synthetic oil? If so will any real damage be done?

    My Trailblazer doesn't seem to like the synthetic but I don't want to ruin anything or cause any damage if I switch back to normal oil.Can you switch back to regular oil after using the synthetic oil? If so will any real damage be done?
    Yes you can switch back. No problems will occur. 100% sure...





    Im an ASE certified mechanic...Can you switch back to regular oil after using the synthetic oil? If so will any real damage be done?
    Regular oil is just fine.
    nothing will be damadged if you switch.





    i would just advise to be sure and change the filter at the same time you switch, just like a regular oil change.
    Theres no reason that there will be any damage. But the other guy is incorrect. 99% of cars have gone from regular to SYNTHETIC. It doesn't cause leaks. The oil isn't always thinner either, its just produced differently which makes it last longer and protect better. Theres no reason that your trailblazer shouldn't like it. Call your dealer and find out why it's doing what its doing.
    I regularly switch back and forth and never had problems, doing it for past 12 years. I use the synthetic for the cold winter months, it flows better on cold start. It tells you right on bottle that it is compatible with conventional oils.
    no damage will be done....if you were to go the other way (normal to syn) you could develop leaks...synthetic is thinner

    Should synthetic oil be used in a diesel engine?

    Is synthetic oil beneficial in a diesel Cummins engine, or is regular 15W40 weight oil OK?Should synthetic oil be used in a diesel engine?
    Just make sure its rated properly. If its a 6.7 you need the CJ rating. With the 5.9 the CI+4 rating is great due to higher TBN but CJ rated will do just as good.





    Just make sure the engine is good and broken in first. If you've towed a decent load a few times I'd say you're good to go. If you haven't ever pulled a thing it might not get broken in until 15000 miles or more.





    Personally I run Shell Rotella 15W40 and the last changes have been CJ rated. I do oil analysis and everything has always came back great. I changed my oil right at 6000 miles last time and the report came back that my TBN had only dropped about 1/3rd of the TBN of unused oil. Basically this amounts to the oil still having a lot of life left in it and the additive package is still in good shape. They actually recommended that I could double my mileage before the next change.





    A 5W40 synthetic like Shell's Rotella would really help during a cold winter start. I have a block heater on mine and it helps get the 15W40 heated up and the pressure comes up a lot quicker.





    If you have a Dodge I highly recommend the block heater. Actually the truck already comes with the block heater, you just have to install the cord. You can order the cord from Mopar or buy a $15 universal one from Napa.





    To install the cord, take the intake tract off between the airbox and turbo. The block heater is directly rear of the oil filter. It will have a black screw on cap on the terminals. You may have to use some channel locks to get the first turn off the cap but it will back off easily.





    Screw the cord end into the termination and drop the cord down to the frame and run it to the front bumper.





    Of all the things I've ever done to my truck, getting the block heater going was the absolute easiest thing I've ever done. It was also one of the cheapest and best things too.





    Getting cab heat almost instantly is awesome on a cold day!!!





    Should synthetic oil be used in a diesel engine?
    Go to cummins.com and check out information on engines.....there is also a really good PDF on there about MPG....


    They will illustrate that synthetics are nothing much more than expensive in the long run......


    I would use a good oil like Rotella T, or Mobil Delvac otherwise.





    I have a 2005 VW diesel I bought new....and have always used Mobil 1 or the Castrol equivalent synthetic....I love the stuff....and I also use Power Service year round in my fuel....Winter stuff in winter...Summer stuff in warm weather....No biodiesel either......you could get a bad case of algae in your fuel system in cold weather with this schitt....


    Then big $$$ to repair.......


    BTW, My employer just got me a 2009 Freightliner with a Cummins diesel....love it.....
    I have an 04.5 and contacted DC and they said you can use SYN if you like but don't go over 10,000 mile per oil changes or your warranty is void%26gt; My friend has the same truck and uses SYN and I see no difference%26gt; except he pays $150. and I pay $60. your call%26gt; I use Rotella T
    Personally, I prefer the regular oil changes that I do with regular oil. But as long as the oil is rated for diesel applications it should be OK
    yeah