when I hit 60k I should really try this cocktail.
right now I am running 1 qt penzoil synchromesh and the rest silkolene synthetic. Works pretty good actually....I actually like it more now 15k into it than in the beginning........weird.
ive tried 100% M1=sucks
50/50 m1/synchromesh=ok but not great
100% synchromesh=worked ok