Use 800 to 1000 grit wet or dry (black face) sandpaper. Cut into 1 inch squares and then fold the small piece over (in half) twice. This will give you about a ¼ square with enough material to hold between your index finger and thumb. Make sure the tire letters are wet. Continue to dip the small piece of sandpaper in water as you work. Sand the letters until all dry rot or discoloration disappears. BE CAREFUL NOT TO HIT THE SURROUNDING/RECESSED RUBBER AREAS! Don’t worry about going to far. The letters are solid white all the way through to the sidewall. Be patient. It is a slow process but it will make the letters look pure white and new again. Don't worry about scratches in the rubber. The old rubber sands away to a perfect smooth finish. They will also stay new looking with proper maintenance.

(Tire covers anyone!!!)