I have a good buddy that sells amsoil and is always telling me this stuff is the best oil ever. I put the OE amsoil in my taurus, and run the dominator in the 2 strokes. It has been fine oil for me, but I have talked to some people in the industry and they claim that this oil is an overmarketed scam. They were saying that most of the amsoils dont meet the OE certifications for oil. I havent looked into these claims but im curious if anyone on here has looked into this or not? Any time I ask my buddy any kind of technical information on this oil all I get is some BS answer with no supportings facts or data....which is making me leary of using it anymore.