I can't tell you the name of it, because I don't know it, but about a year ago when i was living with a buddy, some guy came door to door trying to sell some cleaning solution. we tried to send him away, telling him we didn't need it, but then he asked if he could bum a cigarette so i gave him one. well we sat on the porch bullshitting for a couple minutes and he's like "hey, is that your car with the rims on it?"(they were brushed aluminum enkeis) and i said yes. he's like "here watch this, this shit will clean the brake dust right off" so he sprayed it on, let it sit for like 30 seconds, and then sprayed it with my hose and it came right off. they stayed clean for like 2 weeks. so i bought a bottle off him and that's what I used for as long as i had that car.
moral of the story, if someone comes to your door trying to sell cleaning shit, ask them to clean one of your wheels and if it works you'll buy it.