Check out this article http://www.le-inc.com/Literature/LE%20News/answer.pdf And I think they are right. Some people must be nuts to spend twice the money for synthetics which might not even be better, lol:muahaha:

quite an interesting article..thanks for the post...sounds like the oil companies market synthetics to improve profit...i would believe this..whereas i tear an engine down with 150k miles after 3k mile changes...virtually no wear...no oil usage... thanks, bob