Used mothers wheel and tire cleaner
 

Just picked up a random product at autozone to clean my rims with. I was VERY surprised. This stuff takes almost no scrub at all to take stuff off. The first tire I didn't even scrub and I was like :icon14: Very minimal scrubbing to get caked on brake pad dust and grime. I wouldn't even call it scrubbing. More like lightly brushing, it just takes no effort to get it off. Just thought I would share my results so others might use it. Granted I used almost the entire bottle doing my car, but it's not that expensive. Rims shine like they are new.

http://i.imgur.com/1rqR3.jpg

Sorry for the finger, it was very bright with the sun so low.

I've tried that stuff and it works okay with some light scrubbing. I love using Sonax, but the damn thing is so friggn expensive. Worth trying at least once though.