Thread: clay bar
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Old 09-08-2020, 10:21 AM   #50
equ
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Join Date: Aug 2005
Carmudgeonly Ride: 981S, 340i
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Does that have the same ingredient as BMW Wheel Cleaner (which is or is similar to Sonax)? Nasty smell, turns red etc..

I've always wondered if those wheel cleaners are causing some kind of anti-rust coating to come off the rotors and speeding up corrosion.
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