When should I start using synthetic oil??

[nsmitchell]

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.

Hersheys is fine chocolate! Much better than that fake Dove crap! hehe Just kidding! Seriously though, Hersheys is very good chocolate and so is Dove! Synthetic is good oil and so are some conventional oils. Castrol GTX for example is great conventional oil. The additives are what makes it good. Turbo's with super high heat will cook conventional oils and turn them to "coke". Turbo's pretty much require synthetic, if only to help you sleep at night. Some folks are reporting MPG gains after switching to synthetic.

Snake Oil it is not.