Quote:
Originally Posted by savage10ne
BTW i didn't know Amsoil gets thier base from Mobil.
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Until Amsoil buys or builds a polyalphaolefin (PAO) unit (ain't gonna happen), they will have to buy theirs from someone else.
They also buy their additives from the same folks that the other oil formulators do.
Amsoil puts out some good oils, but they are not magic. And their chemists are not somehow smarter than the chemists at Mobil et al.
What Amsoil has working for it, also happens to work against it for many folks. That is their lack of API registration for most of their oils.
Not going for API registration means they are not saddled by the additive level restrictions imposed by the API. They can load up on catalytic converter killing phosphorus and not worry about losing their little emblem on the bottle.
Many folks will not use a non-certified oil, no matter what the manufacturer says about it, so the market for Amsoil will always be smaller if they continue to by-pass the API.
As for the 25,000 mile drains, few non-commercial vehicles should ever run that long on any oil without considerable make-up. I've seen folks try it, and they generally are not pleased with the results. And don't try it without oil analysis along the way (which will end up killing the economic benefit of the longer drains, by the way).
Tim