I have tried alot of wheel cleaners and still had to scrub the brake dust off with a brillo pad or abrasive. I tried this stuff today and its the BOMB. It is called F21 foaming wheel cleaner by Turtle wax. It says Nano-tech formula with no acids. Iam telling you I just sprayed it on, and brushed it with a toliet cleaner brush "lightly", hosed it off and they looked like new. I am a hard customer to please, but this stuff is Great and its not alot of money. I think I got this at Walmart. This stuff rocks, I used to hate cleaning the wheels, this is good stuff.