If that doesn't work, try an old standby - Wesley's Bleche White (honest, that's how it's spelled). It's a whitewall tire cleaner that you can find at an auto parts store or in the automotive cleaner/wax section of one of the big box stores.
Be careful with it, though - it can remove wax, and I don't know what it would do to paint or decals.
Rusty
|