I don't know, maybe I'm being a little silly. But I feel a little uncomfortable using a pressure washer on greased bushings, pins, spindles, etc. I'd be afraid I would "push" grit back into the space that would then essentially act as sandpaper in there. Don't get me wrong, I use a pressure washer on my tractor occassionally, but I don't like to blast those areas. I don't mind a big wad of grease sitting there. I don't mind getting dirty grease on me (my wife is a different story though). I'd rather have gritty, dirty grease on me than possibly push that gritty dirty grease back inside. Somebody else may come on here and say I'm being completely ridiculous though.