I was cleaning a rim on a pick up but had trouble in cleaning the rim especially on the inside the which is visible. The rim is black dull painted, maybe made of aluminum alloy. I used cleaners for rims and end up using mitt glove an dish soap. Got the outside clean but the inside was not so clean, a little brownish. Yes it had built up brake dust at first. Also what could I us to make the rim shine? I never worked on these kind of rims. I'm stumped.