noxon works good, a little green bottle. i've also used met-all with good results, both drastically reducing the size of the little black pits resulting in a mirror finish.
the chrome wheels are a horror show. the chrome is cracked and lifting in spots on the face of the wheel. mine corroded so bad it actually snapped the clips for the wheel emblem. i also got a horrible balance until i cleaned it up and rebalanced it. i also removed the chrome on the mounting surface so that the wheel would actualy sit flat.