Full-synthetic oils are not recommended for pre ... oil cannot get warm enough to burn off moisture and impurities. Change ...

According to AAA, most automakers now recommend oil change intervals between 5,000 and 7,500 miles for vehicles using conventional oil. If your car requires full-synthetic motor oil, that range ...

Shell realizes that unless change is brought about from ... but Castrol's range spans every type of full synthetic and synthetic blend motor oil, as well as its High Mileage and UltraClean categories.

“The big difference is that synthetic oil tends to last longer than conventional oil between changes—up to 10,000 ... or dots to denote “full” and “add oil.” If the level falls between ...

AAA says modern engines running synthetic-blend or full-synthetic oils often can go 5,000 to 7,500 miles before needing a ...