I am new to this forum, but I agree with Greasmonkey about the synthetic lube. I am also a mechanic and a have drag raced for well over thirty years and my cars and my Harley Davidson use sythentic lube. Synthetic lube reduces the friction which in turn reduces wear on mating surfaces and also reduces heat which in certain areas causes a lot of damage. Marine grade in the axle bearings helps to keep the water out. You will not regret using synthetic lube. If you want to use it the engine, make sure it is broken in first. If you don't, the rings will not "seat"
