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Wheel hubs are favored by more and more private owners because of their beautiful appearance, safety and comfort. Here, we will introduce you to the maintenance of aluminum alloy wheels. When necessary, clean and wax the wheel hub to ensure its luster. When the hub is stained with hard-to-clear asphalt, if the general cleaning agent does not help, use a brush to try to clear, but do not use a hard brush, especially the iron brush, so as not to damage the hub surface. Here, introduce to the private car owners a recipe for clearing the asphalt: If you choose to use the medicinal "active oil" to rub it, you can get unexpected results. Try it out. When the hub temperature is high, it should be allowed to cool naturally and then cleaned. Do not use cold water for cleaning. Otherwise, the aluminum alloy hub may be damaged, and even the brake disc may be deformed to affect the braking effect. In addition, cleaning the aluminum alloy hub with a cleaning agent at a high temperature will cause a chemical reaction on the surface of the hub, causing a loss of luster and affecting the appearance. If the vehicle is in a wet place, the wheel hub should be cleaned frequently to avoid salt corrosion on the aluminum surface.