Several companies make chrome wheel cleaner spray. Here's a link to Meguiar's version:
http://www.meguiarsdirect.com/product_detail.asp?T1=MEG+G14024
I believe these sprays are all midly acidic so you're best off using them as sparringly as possible and always follow the directions as far as how much time to leave it on before hosing off. A far better solution is to actually wax the wheels with a synthetic wax. Synthetic last far longer than a natural wax but gives you the same slick surface properties so it's far harder for the brake dust and dirt to accumulate on the wheels. One of the things you'll discover if you wax your wheels is you end up not usually having to use any of the special wheel sprays to clean your wheels, the brake dust and dirt usually come off with a spray of water and a quick wipe (sometimes you don't even need the wipe).
http://www.meguiarsdirect.com/product_detail.asp?T1=MEG+G14024
I believe these sprays are all midly acidic so you're best off using them as sparringly as possible and always follow the directions as far as how much time to leave it on before hosing off. A far better solution is to actually wax the wheels with a synthetic wax. Synthetic last far longer than a natural wax but gives you the same slick surface properties so it's far harder for the brake dust and dirt to accumulate on the wheels. One of the things you'll discover if you wax your wheels is you end up not usually having to use any of the special wheel sprays to clean your wheels, the brake dust and dirt usually come off with a spray of water and a quick wipe (sometimes you don't even need the wipe).
