Originally Posted by ShawnQ
I was thinking CLR myself...try it in a small inconspicuous area and see what it does.
Simple Green may be a good idea also - but I've noticed it can 'spot' if the aluminum on the engine is hot (which wont be the case in your scenario...but I'm not sure what it does when the engine is cold).
A lot of the cars at Bonham had a ton of aluminum oxidization on them...
SQ
Because of the engine cover, most of the engine is inconspicuous, but since it is currently on an engine stand, everything can be cleaned. If would probably be easier to clean if I know what it is I am trying to remove. So you think it is aluminum oxidation?
Ok, I just did a little research and it is oxidation. From what I read the best cleaner that also brightens the aluminum is Phosphoric acid which I found is used by truckers, and even sailors to clean aluminum masts. I will try to find some of this stuff. If this works, I will need to find something to prevent it from coming back. I once had some High heat ceramic clear that I think would look good. I will try to at least post the "before" pictures tomorrow.