Our Ultimate Wheel Cleaner is safe to use on ALL wheel types. This includes polished alloys, split rims and chrome finishes (i.. all the types that other wheel cleaners tell you to avoid) Remember that wheels should be cool during application and rinsed thoroughly. The product may need to be agitated with a brush to remove stubborn stains and ground in brake dust, we would suggest our Supreme Wheel Brush. IMPORTANT to note that this product should be applied to a DRY wheel to allow the gel formulation to cling to the wheel and clean! Search the MeguiarsUK YouTube channel for video demonstrations.