1. Allow the wheel hubs to cool down naturally before cleaning them if they are hot. Never wash them with cold water; doing so can damage the aluminum alloy hubs or even warp the brake discs, thereby impairing braking performance. Additionally, using cleaning agents on hot aluminum alloy hubs can trigger a chemical reaction on the surface, causing a loss of luster and detracting from their appearance.
2. If stubborn tar adheres to the wheel hubs and standard cleaners prove ineffective, try using a brush to remove it. However, avoid using overly stiff brushes-especially wire brushes-to prevent scratching or damaging the hub surface. Here is a handy tip for private car owners: applying medicinal "Huo Luo Oil" (a type of medicated liniment) to the tar can yield surprisingly effective results.
3. If the vehicle is located in a humid area or near the coast, clean the wheel hubs frequently to prevent salt from corroding the aluminum surfaces.
4. When necessary, you can wax the wheel hubs after cleaning to maintain their shine and luster.
