Simple Green or Castrol Degreaser is what I use to get the dust/dirt/buildup off. Then I let it dry and blow it off with the shop vac. Then a light coat of Son of a Gun. Then wiping down everything that needs it. I really hate putting on the protectant because its really not as clean as if I just left it. The protectant does attract and collect dirt, but everyone associates clean with shiny.