i tried to be careful and listen to what schaeffer had to say bout their 20w-50 you warned me about the soluble micron moly... their oil is TOP NOTCH for vehicles but they are not entirely accurate in their statement:
Supreme 7000 Synthetic Plus Racing Oil SAE 20W-50 is recommended for use in all 4-cycle air-cooled or water-cooled motorcycle and ATV engines. Supreme 7000 Synthetic Racing Oil SAE 20W-50 can also used in those motorcycles that have a common sump for the engine and transmission.
And so yes slight slippage did occur...
So back to stay with the rotella... period... if it works why in the world change...
p.s.. found out from another "tech" when i called them ..again.. is yes it will work in common sump .. if the plates are fiber...