When should I start using synthetic oil??

[bronsin]

Originally Posted by 1stToyota

Snake oil implies that it's not a good product. Synthetic might not be needed in most makes, but testing often shows that it's a superior product. Hershey chocolate will do the job just fine, but I'd much prefer to pay the extra to get the better Dove dark.

Synthetic oil was delveoped for use in jet (gas turbine) engines where operating temperatures exceed 400 degrees F. Since internal combustion engine temperatures are less than 200 degrees F synthetic oil is not needed. Marketing types saw the need people have for "something better" than the next guy and started the hype.