Bilt Hamber Auto-Wheel Wheel Cleaner 5 LitresAuto Wheel is a non acid, non alkaline alloy wheel cleaner, and in most cases, no agitation is required. In most cases, steel and alloy wheels are either lacquered or painted. These coatings protect the metallic surface from corrosion and provide attractive finishes to automotive road wheels. As vehicles brake, the dust generated from pads, discs and drums is at elevated temperatures. Amongst this hot cloud are thousands of hot metallic particles.