Quote:
Originally Posted by minendrews68
I've been curious for a number of years. In my home town there is a small white Ranger pickup that the guy must be a Amsoil dealer. On the back of the truck there is a sign that says (maybe not word for word but,) "this truck does not use any petroleum based oil in the engine" What does it use? Does the synthetic not use some petroleum in it?
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I've got no idea what he's using. Synthetics are chemically engineered not refined like conventional oils. Yes some synthetics have petroleum components. The key word is base. All synthetics have a base stock and additives, apparently the oil he uses has a synthetic base. Very possible.