Originally Posted By: Falken
The brake dust, tire rotation marks (I write on the inside of the rim not on the tire), scum, rust was getting thick on mine.
WD-40 and a rag cuts right through it, and you don't have to worry about exacerbating any rust around the hub / lug hole area.
You need to be careful with WD40 on wheels that use stick one weights or they wont be stuck on much longer.