for a quicky answer you could use almost any tire-cleaner as they all work about the same to me. (I use diluted Simple Green) I would scrub it with a brush then rinse. Everybody here uses different tire protectants from Meguires, Zaino,
Eagle One, Vinylex and so on, but most stay away from the Turtle Wax (with the exception of some newer long-lasting Gel they have that is supposed to work pretty good.) and the cheaper type products. My opinions: Meguires is too sticky (Endurance) to use and Vinylex too exspensive and does not last long. Have heard Zaino tire stuff is good. I use Eagle One Concourse Tire dressing and it is great!! Gives the tire a deep, blk finish and it last a while. (It's not shiny, but dark blk) If your looking for the "ghetto shine" as they call it here, you can use (I don't like it though) EF Black Opal or 2001 for that look. Anyway, study the main site and you'll get lot's of tire info there, good luck!!