Simple Green is the greatest engine cleaner/wheel cleaner/body cleaner ever. Never seen it hurt anything.Just wanting to know what should or should not be used for engine cleaning. Purchased a real nice 78 1000 for my son last night and it is just mainly dusty from sitting 2 years. A little oily / greasy on the engine but looks real ggod. I want to clean and detail the engine up a little but don't want to use the wrong stuff that would perhaps be too strong and eat off original finish. Was thinking of just Gunk engine cleaner and power washing.