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
Thursday, January 7, 2010
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
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
Would switching to synthetic oil lower our gas prices and reduce our dependency on foreign oil?
If so why isn't it discussed more. If not why not, why not?
Supposedly price is not as big of an issue (synthetic costs more but last longer offsetting cost).
What's your thoughts?Would switching to synthetic oil lower our gas prices and reduce our dependency on foreign oil?
yeh it's true all over the world talking about oil , it's so high that you buy gas or petrolium
Supposedly price is not as big of an issue (synthetic costs more but last longer offsetting cost).
What's your thoughts?Would switching to synthetic oil lower our gas prices and reduce our dependency on foreign oil?
yeh it's true all over the world talking about oil , it's so high that you buy gas or petrolium
Can synthetic oil be processed into gasoline?
I once read that synthetic oil can be manufactured from organic waste in garbage. If this is true, wouldn't we eliminate two problems (pollution, oil dependence) by increasing synthetic oil production?Can synthetic oil be processed into gasoline?
http://www.fossil.energy.gov/aboutus/his鈥?/a>Can synthetic oil be processed into gasoline?
No. just because it is an oil, doesn't mean it has all the properties or components that are present in naturally occuring fossil fuels.
fossil fuels are not pure substances. they are refined like any other substances to obtain the desired product.
oil being one of them.
Just like you would not be able to take a bottle of motor oil and refine any more methanol out of it, you will not be able to refine it from syn oil because it isn't there to begin with.
microorganisms will end our dependance on fossil fuels. afterall, the right waste combined with the right organisms can make any fuel that we need, including: ethanol, methane, hydrogen, or any others you can think of.
Yes, but biodiesel production is cheaper and easier.
i am pretty sure they are only able to extract methane from garbage tips and there are already a few generating power.....
This could be used to power gas cars, I am not sure how efficent these extraction plants are yet though.
Gasoline can be synthesized from it, but is it worthwhile: is more energy spent on synthesizing it than is retrieved?
As an aside, during WWII, gasoline was in such short supply that some truck were adapted to run on wood. Again, a trade-off: how many trees must be chopped down to provide fuel?
Yeshockey
http://www.fossil.energy.gov/aboutus/his鈥?/a>Can synthetic oil be processed into gasoline?
No. just because it is an oil, doesn't mean it has all the properties or components that are present in naturally occuring fossil fuels.
fossil fuels are not pure substances. they are refined like any other substances to obtain the desired product.
oil being one of them.
Just like you would not be able to take a bottle of motor oil and refine any more methanol out of it, you will not be able to refine it from syn oil because it isn't there to begin with.
microorganisms will end our dependance on fossil fuels. afterall, the right waste combined with the right organisms can make any fuel that we need, including: ethanol, methane, hydrogen, or any others you can think of.
Yes, but biodiesel production is cheaper and easier.
i am pretty sure they are only able to extract methane from garbage tips and there are already a few generating power.....
This could be used to power gas cars, I am not sure how efficent these extraction plants are yet though.
Gasoline can be synthesized from it, but is it worthwhile: is more energy spent on synthesizing it than is retrieved?
As an aside, during WWII, gasoline was in such short supply that some truck were adapted to run on wood. Again, a trade-off: how many trees must be chopped down to provide fuel?
Yes
Saturday, December 26, 2009
What type of non synthetic oil should I put in my 2001 XLE V6 Toyota Camry?
It has 100,026 miles... I can't remember if it is 10-05 or 10-30... Thanks for your advice... JamesWhat type of non synthetic oil should I put in my 2001 XLE V6 Toyota Camry?
Make sure you don't need 5w 20w, look in the manual or call a dealer.
Sometimes the oil fill cap has it stamped on it.What type of non synthetic oil should I put in my 2001 XLE V6 Toyota Camry?
There is no reason NOT to use a fine synthetic oil in your Camry. Your engine is just breaking in. For best results, use a sludge remover, like butyl cellosolve BEFORE changing the oil. Use Mobil One, ELF, or Amzoil. Oil change intervals can then be extended safely to 2 years. Be sure to use a genuine Toyota oil filter or a Mobil One oil filter. Regular oil ALWAYS leaves sludge and varnish and dirt build-up inside the engine components like valve lifters. Use the synthetic to protect best, clean the most, and last the longest!!! Your engine should last for more than 300,000 miles with little or no discernible engine wear if you follow my advise. Also, power wash your engine and keep it showroom clean ALWAYS. Good Luck!!
10W-30.
Castrol, Chevron, Penzoil, they're all good.
not 10 w 30
5 w 30 go with
and go with penzoil
Make sure you don't need 5w 20w, look in the manual or call a dealer.
Sometimes the oil fill cap has it stamped on it.What type of non synthetic oil should I put in my 2001 XLE V6 Toyota Camry?
There is no reason NOT to use a fine synthetic oil in your Camry. Your engine is just breaking in. For best results, use a sludge remover, like butyl cellosolve BEFORE changing the oil. Use Mobil One, ELF, or Amzoil. Oil change intervals can then be extended safely to 2 years. Be sure to use a genuine Toyota oil filter or a Mobil One oil filter. Regular oil ALWAYS leaves sludge and varnish and dirt build-up inside the engine components like valve lifters. Use the synthetic to protect best, clean the most, and last the longest!!! Your engine should last for more than 300,000 miles with little or no discernible engine wear if you follow my advise. Also, power wash your engine and keep it showroom clean ALWAYS. Good Luck!!
10W-30.
Castrol, Chevron, Penzoil, they're all good.
not 10 w 30
5 w 30 go with
and go with penzoil
Is synthetic oil so superior as to justify the much higher price?
For years we have used non-synthetic oil without destroying our engines. Now the general buzz is that synthetic oil is many times superior. Does it really reduce friction to the point where gas mileage is increased? I am not putting it into a racing car but merely a Toyota Corolla. Does the supposed difference only apply to high-performance engines? Does it protect the average engine from wear any better?Is synthetic oil so superior as to justify the much higher price?
Here's my opinion..go to this site as I consider it the #1 site on the net when it comes to any questions regarding engine oils, additives etc. There's a message board as well.
Here's a quote from the site.
';Bob Is The Oil Guy (BITOG) began in May 2002 with a handful of participants and now our oil forums have over 16,000 registered members. And we have well-respected tribologists, chemists, and oil analysis professionals who regularly participate and contribute their knowledge and expertise.
Unlike most private motor oil web sites, Bob Is The Oil Guy is not about selling you something. It's about educating you so you can make informed decisions about the life blood of your engine: motor oil.';Is synthetic oil so superior as to justify the much higher price?
The major advantage of synthetic oils is that they are not petroleum based, or not ';entirely'; petroleum based, in some cases. The theory tends to be that it does not ';break down'; over time, runs cleaner longer, and does not leave a lacquer residue on parts. As for being better at lubricating, increasing horsepower, or giving better mileage, I don't really believe it. I still use regular motor oil, usually the cheapest five quart bottles, and change it and the filter every couple months...that philosophy has never let me down yet.
Yes, synthetic oil is finally coming into its own. Newer cars are being sold with synthetic oil.
http://www.allpar.com/eek/synthetic.html
Here is the catch though. Before you use it do at least two back to back fillups to get an accurate MPG reading. Then if you use a quick oil change shop make sure you stand there and watch them. I personally do not trust them anymore. Anyway, after about 1000 miles driving do a MPG check and see how you are doing. It takes about that long for the oil to seep into the metal properly and for you to notice the difference. Now if you get the difference and then multiply the miles saved you should see the dollars saved on the gas. It is really noticeable of the mileage saved when you do long distance driving. I had a 33% increase on my 82 Toyota Celica and it was a 4 cylinder engine and this was in 84 when I started it. I think I was saving about $10 a month. I know the saving would be more now with these high gas prices.
Synthetic has some lubricants in it that are small enough to seep into the metal. Regular oil just coats a metal piston, not seep into it. Also, you do the recommended synthetic oil change every 6 months, not 3 months. So a regular oil change is about $9 and then $9 again in the next 3 months. Now at Walmart you can get the 5 qt can for the price of 4 quarts so you save money there. But if you do use 5 quarts then it is about $28 vs $18 in a 6 month period.
Now what I did on my celica was change the oil filter every 3 months or sooner and did the synthetic oil change every year. Regular oil has a breakdown of 12,000 miles and synthetic has a breakdown at 60,000 miles. So how they came up with 6 months oil change I do not know. But my car had 210.000 miles before it was stolen. They found it and I did not know that I could have bought it back cheaper than the money they paid me for it. But it was running smooth. The reason I was a stickler on oil filter changes, cuz in the Army maintenance I learned that microscopic metal particles in the oil is what puts wear and tear on an engine. So I figured to changed oil filters often, but the synthetic oil once a year. Worked for me. I have a 92 Ford Eddie Bauer which I bought from my brother. I had turned him into a synthetic user. Anyway, the original engine has over 231,000 as of last week. I had to get another free tire from Discount Tire, otherwise I never really look at the odometer. The only thing done to the engine was change the oil pump and valve cover gaskets.
But do the fillup test first before your syn oil change. Then when you see the difference in money, like me you will never go back to the dark side. Money rules!!!!
Synthetic oil is made from standard oil but it has been chemically altered for superior sheer resistance. Thinner oil will now have the same protection as thicker oil with less resistance. It will not reverse engine damage but will hold it off for longer.
All that synthetic oil does is increase your Hp by to 2 or 3 because it is not so thick as regular oil.
i don't think there are any HARD stats on that. i haven't seen a lot of manufacturers advocating synthetic.
One of the key reasons to switch to synthetic oil is you will achieve better gas mileage.
I posed the same question to myself three yrs. ago to myself when I purchased a new 4 cyl. Camry. At that time Toyota had an oil sludge problem looming around their heads. I figured that by using an oil (Mobil 1 synthetic) I could duck the causes of the claim. Sure enough, inside the valve cover looks like a hospital operating room. I wanted optimum protection inside the little hot running motor. It's payed off with 35 - 36- mpg. highway and 26 - 27 around town. True @ $22.50 per gallon at every 5000 mile oil change may sound excessive. It's the first car I've ever used 100% synthetic oil. The motor has been perfect and when my free dealer oil changes are up at 36,000 miles I plan on continuing this program. I've been changing my own oil in all my other cars since the early 60's. To preserve every bit of leverage of the 60,000 drive train guarantee I'll continue to stick to the 5,000 mile Mobil 1 changes.
synthetic extends oil change time. Many car and oil co. say 12 to 15 thou.. yes it does improve millage though only slightly...in the government cafe world 1/3 mpg times 3 million cars helps....Your car may not blow up with regular old oil but say it lasted 300,000 miles instead of 150,000.. The money part.. is it worth it? I still use regular oil and change it at 5,000 miles..My S10 has 125,000 miles and uses 1/2 qt between changes.I'm happy
Here's my opinion..go to this site as I consider it the #1 site on the net when it comes to any questions regarding engine oils, additives etc. There's a message board as well.
Here's a quote from the site.
';Bob Is The Oil Guy (BITOG) began in May 2002 with a handful of participants and now our oil forums have over 16,000 registered members. And we have well-respected tribologists, chemists, and oil analysis professionals who regularly participate and contribute their knowledge and expertise.
Unlike most private motor oil web sites, Bob Is The Oil Guy is not about selling you something. It's about educating you so you can make informed decisions about the life blood of your engine: motor oil.';Is synthetic oil so superior as to justify the much higher price?
The major advantage of synthetic oils is that they are not petroleum based, or not ';entirely'; petroleum based, in some cases. The theory tends to be that it does not ';break down'; over time, runs cleaner longer, and does not leave a lacquer residue on parts. As for being better at lubricating, increasing horsepower, or giving better mileage, I don't really believe it. I still use regular motor oil, usually the cheapest five quart bottles, and change it and the filter every couple months...that philosophy has never let me down yet.
Yes, synthetic oil is finally coming into its own. Newer cars are being sold with synthetic oil.
http://www.allpar.com/eek/synthetic.html
Here is the catch though. Before you use it do at least two back to back fillups to get an accurate MPG reading. Then if you use a quick oil change shop make sure you stand there and watch them. I personally do not trust them anymore. Anyway, after about 1000 miles driving do a MPG check and see how you are doing. It takes about that long for the oil to seep into the metal properly and for you to notice the difference. Now if you get the difference and then multiply the miles saved you should see the dollars saved on the gas. It is really noticeable of the mileage saved when you do long distance driving. I had a 33% increase on my 82 Toyota Celica and it was a 4 cylinder engine and this was in 84 when I started it. I think I was saving about $10 a month. I know the saving would be more now with these high gas prices.
Synthetic has some lubricants in it that are small enough to seep into the metal. Regular oil just coats a metal piston, not seep into it. Also, you do the recommended synthetic oil change every 6 months, not 3 months. So a regular oil change is about $9 and then $9 again in the next 3 months. Now at Walmart you can get the 5 qt can for the price of 4 quarts so you save money there. But if you do use 5 quarts then it is about $28 vs $18 in a 6 month period.
Now what I did on my celica was change the oil filter every 3 months or sooner and did the synthetic oil change every year. Regular oil has a breakdown of 12,000 miles and synthetic has a breakdown at 60,000 miles. So how they came up with 6 months oil change I do not know. But my car had 210.000 miles before it was stolen. They found it and I did not know that I could have bought it back cheaper than the money they paid me for it. But it was running smooth. The reason I was a stickler on oil filter changes, cuz in the Army maintenance I learned that microscopic metal particles in the oil is what puts wear and tear on an engine. So I figured to changed oil filters often, but the synthetic oil once a year. Worked for me. I have a 92 Ford Eddie Bauer which I bought from my brother. I had turned him into a synthetic user. Anyway, the original engine has over 231,000 as of last week. I had to get another free tire from Discount Tire, otherwise I never really look at the odometer. The only thing done to the engine was change the oil pump and valve cover gaskets.
But do the fillup test first before your syn oil change. Then when you see the difference in money, like me you will never go back to the dark side. Money rules!!!!
Synthetic oil is made from standard oil but it has been chemically altered for superior sheer resistance. Thinner oil will now have the same protection as thicker oil with less resistance. It will not reverse engine damage but will hold it off for longer.
All that synthetic oil does is increase your Hp by to 2 or 3 because it is not so thick as regular oil.
i don't think there are any HARD stats on that. i haven't seen a lot of manufacturers advocating synthetic.
One of the key reasons to switch to synthetic oil is you will achieve better gas mileage.
I posed the same question to myself three yrs. ago to myself when I purchased a new 4 cyl. Camry. At that time Toyota had an oil sludge problem looming around their heads. I figured that by using an oil (Mobil 1 synthetic) I could duck the causes of the claim. Sure enough, inside the valve cover looks like a hospital operating room. I wanted optimum protection inside the little hot running motor. It's payed off with 35 - 36- mpg. highway and 26 - 27 around town. True @ $22.50 per gallon at every 5000 mile oil change may sound excessive. It's the first car I've ever used 100% synthetic oil. The motor has been perfect and when my free dealer oil changes are up at 36,000 miles I plan on continuing this program. I've been changing my own oil in all my other cars since the early 60's. To preserve every bit of leverage of the 60,000 drive train guarantee I'll continue to stick to the 5,000 mile Mobil 1 changes.
synthetic extends oil change time. Many car and oil co. say 12 to 15 thou.. yes it does improve millage though only slightly...in the government cafe world 1/3 mpg times 3 million cars helps....Your car may not blow up with regular old oil but say it lasted 300,000 miles instead of 150,000.. The money part.. is it worth it? I still use regular oil and change it at 5,000 miles..My S10 has 125,000 miles and uses 1/2 qt between changes.I'm happy
How much time or how many miles should I wait to change my engines synthetic oil?
the same as the extended service interval on your car.
Oil change intervals with synthetic oil
Synthetic oils withstand higher temperatures before breaking down, and have more base stock and less viscosity modifiers. Synthetics wear out, become acidic, and eventually become saturated with suspended soot particles, just like regular oil. Again, an oil analysis is a good investment to determine the optimum oil change interval. Never exceed the manufacturer requirements for normal service.
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.How much time or how many miles should I wait to change my engines synthetic oil?
BIGTHINGS, If your car is still under factory warranty, abide by their drain intervals. If you hammer a lot of miles on your car in a relatively short period of time It's perfectly OK to stretch the mileage to the maximum recommended by your manufacturer. If your car is out of it's warranty period and you're using an extended drain interval full synthetic Mobil1 says 15,000 miles.
Sorry, but I don't agree with Amsoil's claim of 25,000 mile drain intervals with oil filter changes every 12,000. This is fool hardy, particularly if you live in a cold climate and do a lot of stop and go driving.How much time or how many miles should I wait to change my engines synthetic oil?
Synthetic oil has a change interval every 5k miles, The syn based oils are less likely to wax up in the colder weather than mineral oils and do not break down like conventional oils do. Some oil manufactures claim as 7500k mile interval which is not recommended by top technicians. It is safe to say that a 5k mile change will be sufficient for your application
3000 miles... is the standard.. although manufactureres start using synthetic oil and they say that you can go 7500 without oil change... i dont trust them.. because they just want to make money... though synthetic oil breaks down less compared to regular oil.... you still want to change oil early.... over time the oil becomes dirty and has many wear and tear particles in it.. that oil filter may or may not catch..
usually 6,000 miles or about 10 months
Oil change intervals with synthetic oil
Synthetic oils withstand higher temperatures before breaking down, and have more base stock and less viscosity modifiers. Synthetics wear out, become acidic, and eventually become saturated with suspended soot particles, just like regular oil. Again, an oil analysis is a good investment to determine the optimum oil change interval. Never exceed the manufacturer requirements for normal service.
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.How much time or how many miles should I wait to change my engines synthetic oil?
BIGTHINGS, If your car is still under factory warranty, abide by their drain intervals. If you hammer a lot of miles on your car in a relatively short period of time It's perfectly OK to stretch the mileage to the maximum recommended by your manufacturer. If your car is out of it's warranty period and you're using an extended drain interval full synthetic Mobil1 says 15,000 miles.
Sorry, but I don't agree with Amsoil's claim of 25,000 mile drain intervals with oil filter changes every 12,000. This is fool hardy, particularly if you live in a cold climate and do a lot of stop and go driving.How much time or how many miles should I wait to change my engines synthetic oil?
Synthetic oil has a change interval every 5k miles, The syn based oils are less likely to wax up in the colder weather than mineral oils and do not break down like conventional oils do. Some oil manufactures claim as 7500k mile interval which is not recommended by top technicians. It is safe to say that a 5k mile change will be sufficient for your application
3000 miles... is the standard.. although manufactureres start using synthetic oil and they say that you can go 7500 without oil change... i dont trust them.. because they just want to make money... though synthetic oil breaks down less compared to regular oil.... you still want to change oil early.... over time the oil becomes dirty and has many wear and tear particles in it.. that oil filter may or may not catch..
usually 6,000 miles or about 10 months
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