Originally posted by doubleadesign
Slow down there...
Hey, I'm just saying it would be a bad idea. This statement coming from someone in an auto service department is definitely interesting. If an every-day-Joe that didn't know much about cars, and decided to start doing his own oil changes, heard this he may try it. It may not yield the best circumstances.

AMSoil being "the best stuff you can buy" is somewhat opinion, somewhat fact. I've used AMSoil in the past and, although it is a great motor oil, Mobil 1 (in my opinion), including all factors, is just as good. I wouldn't run either for more than 6k-7k miles in a consumer vehicle, though... that is MY opinion.