Did i miss an Amsoil discussion...darn. Will look back to see if I can add anything. (Been in the process of moving to NC... apologize for not checking in more often) I really try not to bash what is generally a superior synthetic, but in today's world the value proposition just isn't there, outside the racing circuit perhaps... or those who hyper extend oil change intervals. In addition to the MTF debacle itself, the Amsoil "warranty" was the biggest disappointment of that experience. But after spending an entire week at Amsoil corporate and having lunch everyday with Amsoil brass, I shouldn't have been surprised. Old man AJ (the fighter pilot who started the company, a real perfectionist who insisted on the absolute BEST) was in the process of turning the company over to his very young son, Alan, and Alan's friend Dean, the bean counter. (btw, it was a week-long lube training conducted by an independent consultant by the name of "Bud_Weiser" (true) which of course means nobody at Amsoil had the expertise to do the training) So yes, always agree with @squiggy, @webby and others who have have testified to the provably bad experiences with Amsoil MTF in an LSD. The warnings against using the MTF on an LSD were even right on the MTF label... so how in the world could they defend it? Over at BITOG, seems the most vitriol comes from Amsoil dealers who would be hurt financially from our observations. But the pics don't lie, and neither does the UOA from two labs, although Blackstone's comments suggested that the 'next UOA might be better'. Great. With our transmissions on the line -- and literally self-destructing -- there was no way squiggy and i were going down that road.