The bare aluminum wheel cleaners will do that, as they're almost watered down battery acid. The Eagle one stuff is a different type. It makes old alloy high flange hubs nice looking again. This is with no polishing, only the Eagle One cleaner and a soft wheel brush. It was crusty and caked with old grease before. It came out okay. I didn't bother polishing as it was a flip Conti.,,,,BD