aluminum wheel trick

I made a similar discovery...

For bare aluminum wheels that have no protective clear coat, spray them quickly and uniformly with "Oil Eater" cleaner (available at Kragens). Keep them wet. Scrub a little with a sponge if you want to. Hose off. The aluminum will look new.

I shoot it in my engine compartment then pressure wash it off. The master cylinder, intake manifold, etc look great.