Blue Magic as said before (get mine at Kragen). Here's the tip...Once you rub the blue magic on the wheel, sprinkle some corn starch (yep for cooking) over the blue magic. Now, rub clean with a clean cloth and check it out. If ya don't believe it, do one with corn starch and one without and check out the difference. Do it a couple of times per wheel if needed. After all done, you can use a coat of car wax to help prolong the intervals between polishing. Been doing this to my Weld's for years and they still look good. Actually got the tip from Weld Racing themselves a few years ago. Good luck to ya.