Quote:
Originally Posted by Zeke
I imagine that wheel was pretty well loaded up with brake mung beforehand. I can offer this, if the detailer couldn't/wouldn't remove that then it's likely that the wheel finish will be damaged when you do find something that will eat it.
Normally a light acid is used, YMMV.
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I have used Zep-A-Lume. It has acid in it. Cut it 5-1 in a spray bottle. Spray directly on spot. Rub with a rag then drown it with water. Repeat.
Drown with water fast is the key as if you let it sit it may dig into the aluminum.
Get it at a Semi supply story. Bummer is I have never seen anything smaller than a gallon. About $30.
http://images.zep.com/zepcorporate/tds/psr_1063.pdf