I use my Karsher to zap the crap off them, Dodo Juice Mellow Yellow to clean them, Dodo Juice Supernatural Polish to buff them then 2 coats of Jetseal 109 to seal them and my alloys looks fab. Obviously when it comes to washing the car again, because of the jetseal sealant I only need a quick zap with the Karsher and for really dirty wheels only a quick wash with the Mellow Yellow.