There are a few different ways to clean aluminum, and the best cleaner for aluminum depends on the type of aluminum and the type of dirt or grime that you are trying to remove. For example, if you are trying to remove fingerprints or smudges from an aluminum door, you can use a mild detergent or soap and water. If you are trying to remove more stubborn dirt or grime, you can use a stronger cleaning solution, such as vinegar or baking soda. You can also use a commercial aluminum cleaner, which you can purchase at most hardware stores.