I had some black spots on mine from working at the plant. What I bought was shout wipes. They worked better than I expected. The thing is that you have to dap on the area first til it starts picking it up. Then when its almost gone you can wipe really lightly til its gone. The wipes are cheap I only paid like $2.50 for a box of 12. If you try it tell me how it went.just noticed my cars interior roof is pretty dirty. I need to clean it with something, any ideas?