Rogue, I'm at exactly the opposite end of the spectrum from you./w3tcompact/icons/laugh.gif I don't disagree that some cleansers and solvents could cause problems, but I've been washing the engines on my cars, pickups, tractors, lawnmowers, etc. for well over 40 years, sometimes with plain water and garden hose, sometimes, when necessary, using degreasers, sometimes using a hydro blaster (hook up both water hose and air hose to the gun), and sometimes using the pressure washers at coin operated car washes. And I take almost no precautions except to not spray water directly into the air intake. And then, after washing, I always run the engine long enough to get it thoroughly warmed up and to evaporate any moisture. I'm not recommending my methods to anyone else; just telling you what I do personally. I don't like a dirty engine 'cause I might have to work on it someday./w3tcompact/icons/wink.gif