Something that has always worried me, was by spraying a high pressure hose to clean an engine.Does it do damage to the engine ,in the long run or not? Surely it cant be good to moving parts and bearings in the engine.Yes it cleans etc etc and the engine looks good.But effectively is it worth it. On the otherhand, how can 1 maintain an engine clean if you dont use it.Are there other methods that you Fanatics clean yours?