Originally Posted by selwonk
One thing I can try is some spray solvent that my dad (an engineer) uses. It's great for removing marks of black trim so it might do the job otherwise it's off with the rails and have 'em sprayed...
If you can't get it off we'll ask the guy who I'm getting in to sort out the dash scratch - he could probably do it when he sprays my wiper arms
Did you email Mark on that by the way?