I only use Master Formulas polish
http://www.masterformulapolish.com/ and protective honestly this stuff rocks. I can tell you how to re-finish them but its alot to do and your better off just taking the tires off and having a shop to them...from that point use Master Formula to maintain, just make sure the polish you do use has jewlers rouge in it. hope this helps some, let me know if you have any questions.