What we would find in this list of very good oils it that they all are very good oils. It is unlikely I would change brands based on the outcomes, but I guess you don't know what you might see unless you look.
It doesn't matter which oil you use as for quality. There all good. Ams, RL, have lube an engine for 400K while M1 and PP may lube with success to 399K. Not much differance in oils.
Originally Posted By: gfh77665
I would love to see an AMSOIL type test series between Amsoil, Royal Purple, RedLine, PU, M1-EP, etc. What do you all think?
The "best" from each brand, against each other. The Amsoil test info is really really good, but if RedLine , RP, M1-EP etc. were included, it would be a more of an "apples to apples" comparison.