Sorry about the subject of this thread...I couldn't think of anything better to call it.
How to you clean that stuff of in the pic????
I've tried back to black, cleaners, etc etc.
Ive searched the net..and everyone seems to think its mold, occurring mostly on the drivers side door. My belief is that it is burns from cigarette ash from when someone flicks ashes out the window, and they land there and slightly burn the rubber. (Just a theory).
I thought about shoe polish....or even just sanding and spray painting it.