Synthetic oil?

well all I want to know is when to replace synthetic oil?Synthetic oil?
3000 - 5000 miles or 3 months which ever is first.








No matter what type of oil you choose, there are a few universal constants about engine oil. The first is change it regularly! Conventional oil must be changed with regular frequency (usually every 3,000 to 5,000 miles). The fact is that the oil simply breaks down as it ages and loses the ability to lubricate. It also collects contaminants from the combusting air and fuel in the engine. As these contaminants build up, the oil can become acidic and damage bearing surfaces. Synthetic oil does not breakdown as quickly, but it still acquires contaminants the same way, however it has additives to help battle this. Change it at least every 5,000 - 6,000 miles. Many replace it at 3,000 miles just to be safe. Always change your oil filter when you change your oil. It does little good to replace your oil, only to have a half a quart of old oil sitting in a plugged filter.





It's also a good idea not to mix brands of oil. Stick with a particular brand at least for your current oil changeSynthetic oil?
5000 miles.
I change mine every 5000 miles, but My Fiance changes his in his Dodge Ram truck every 3500 miles.
I generally like to replace it at 5000 miles just because the cleaner you keep the engine the longer it will last, but someone I know once forgot to have it changed until about 12,000 miles. If they had been using regular instead of synthetic they may have killed the engine, and even with synthetic letting it go that long isn't a good idea.
every 6-10k miles
Best thing to do... is have a oil analysis done..., this will tell you how far you can, and can not go based on engine wear...





OR you can just change it ever 6 months regardless...
I generally wait at least 7500 till I change it unless I been driving on alot of gravel roads
5000 - 6000 miles.
you can go 5 to 7 thousand miles with synthetic oil.
between 5,000 - 7,500 miles
depends on the amount of mileage. ams oil has 7,500, 35,000,so on.... you should still change your filter at 3,000