I picked up a bottle of Turtle Wax Spray Foam Wheel & Tire Cleaner at the O'Reilly's auto parts store near me. This is probably the best cleaner I've used to-date that gets the tire & wheel really clean. So far I've used it on the Crossfire's wheels 1x. What I like is it also gets the MGP caliper covers really clean due to its ability to "cling" to the surface. Wheels came out looking really great with minimal scrubbing required; essentially followed the instructions on the bottle & really only required rinsing the product & dirt off with a garden hose. I've also used the product on the chrome wheels on my 2006 F-150 and the wife's 2016 VW Beetle Dune which has factory alloys. Every vehicle came out looking really sharp.