The only warning I have about Dawn Power Dissolver on aluminum, is don't put it in a plastic trash bag. A plastic shopping bag is OK, but not a trash bag. I did this to a couple of pieces, and I think it reacted with the gabage bag somehow, and ate away at the aluminum. I was able to save the pieces, because I didn't leave them in long, and was able to smooth the surface of the aluminum with a bit of elbow grease.
Has anyone else had this experience?