Remove firmly affixed foreign material, such as road tar by using AutoServe Tar Remover. Wash the vehicle thoroughly to remove all surface dirt using AutoServe Shampoo. Allow the vehicle to air dry or use an automotive-friendly soft wipe. Ensure that no lint or foreign material is present on areas to be polished. Work the polish onto the vehicle one small section at a time. Use overlapping, varied strokes, which will ensure that the edges of any subsurface defects are evenly rounded, and will allow sufficient time for the polish abrasives to break down. The polish will become increasingly transparent as it is worked sufficiently. Buff off the remaining film of polish residue using a clean, dry soft towel.