[R U YELLA]

I would test it on the engine first but I would think so but you have to watch out for other stuff like chrome. It did a nice job on my gas cap that I had to re-polish. I do not think that it is an acid. This is something new on the market but was made to clean snow mobiles! I use a dry cloth to wipe up. It does nothing unless it puddles on the metal so if the cloth is damp with the solution it will do nothing. It also protects the metal from oxidizing.