Cleaning aluminum engine
Restoring a 62 Guilietta Spyder with a 1600cc engine, which has a heavy buildup of aluminum oxide. Used a Dremel with a wire wheel to remain the heavy deposits, but there are still a number of small areas that it wasn't able to clean up. I was thinking of using Purple Power to wipe down the engine cover to perform a final cleanup. I have heard both good and bad about Purple Power and aluminum, and wanted to get some input from knowledgable sources before I applied any to the engine cover.
Any other recommended solutions would also be appreciated.