Someone was telling me that they used a shot of MMO in the crankcase. Something about the synthetic oil does not have some of the natural minerals as fossil oil. these minerals are soaked up in the clutch disc helping performance. Anyone heard of this? I don't know sounds possible to me. In was thinking of adding a shot going for a ride to circulate it and let sit for a while, before i flush with a oil change. I do put a shot of seafoam in the oil usually just before a oil change.