For those who use Synthetic oil

[Indianspringsaz]

Originally Posted by Henry G.

Looking at Amsoil own tests are interesting, especially the motorcycle test which showed that the oil I use, Maxima Ultra was one of the best tested. But asking Amsoil for test results of their products is kinda like asking the Catholic Church for proof of God dontcha think? I would be interested in any INDEPENDENT oil test results...
That said I'm sticking to the 4-5k rule, synthetic only and Baldwin filters I have used for my cars and diesel the last dozen or so years...the mechanic that I let change my Duramax engine oil now n then says my truck is one of the only ones he's seen that after the oil change the new oil still looks clean....I'm gonna drive that thing until even thing else besides the engine is worn out...that engine is 10k, at least half that to be rebuilt, not including the turbo, and I cant tell you what its worth (to me) not to be stuck on the side of the road during a family vacation trip in the middle of nowhere....

That was an independent test