Anyone had any luck removing oxidation from the roof of a 940 of year 1991? It's grey in color and the only place that is oxidized is the roof. I've got a variable speed polisher and some rubbing/polishing compound that I've wanted to use on it, but was wondering what everyone's opinion is first. thanks.

 

You can try but usually it's the clear coat that is worn through and the only way to fix it is stripping it and painting the area, then clearcoating it again...