Thanks Trajan, seems he is selective in his reading. My point all along was a new car mfg will look for a waay out of a warranty claim if you don't follow their recommendations. The word their is important, their meaning the mfg, not their meaning Amsoil.
They want an API certified oil for a reason. If I were to use an non API certified oil I would use RL.
If Tim cares to search the WWW for UOA reports he'll find plenty of them where SSO and ASM fell short of their life expectancy.
Oh yes, Amsoil's warranty is different from RL. RL claims are more realistic. And again I'll make mention of those Amsoil filters that didn't live up to their expectations. The company is far from perfect.