Griots garage online sells a dried wax remover. use it to clean up the trim on the MINI a couple of times a year.
Better yet, before you wax treat all the wheel arches and such to Mothers back to black conditioner. It repels the occasional slip while applying the wax.
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2007 MCS Laser Blue 2010, 2008 BMW Oktoberfest Autocross - Stock Mini First Place
2009 BMW Oktoberfest Autocross - Stock Mini Second Place BMW CCA Driving Instructor/Engine Mechanic/Speech Recognition Specialist
I do car detailing as a side business, and I usually put back to black on plastic trim before I wax for that exact reason. If it's already dried on the trim though, Ive found that if you spray the trim with some spray wax, the dried paste wax will actually come off fairly easily
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2002 Indi Blue Cooper
Hella 500FF Rally Lights, K&N 57 Series Intake, American flag window decals, Hoonigan