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Old 06-10-2016, 05:23 PM   #5
Nick M3
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Join Date: Oct 2003
Location: Bethesda, MD
Posts: 12,439
Sonax Wheel Cleaner kicks ass.

But in a pinch, Spray Nine is great.

In an emergency (when it's a matter of sand blasting, or giving up), I've had great luck with muriatic acid. It saved my OZs.
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2011 M3
2006 Sierra 2500HD 4WD LBZ/Allison
2004 X5 3.0i 6MT
1995 M3 S50B32
1990 325is
1989 M3 S54B32

Hers:
1989 325iX
1996 911 Turbo


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