Thread: Cleaning Rotors
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      02-27-2021, 05:01 PM   #4
Doctor_X
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Drives: 2015 M5 CP - 2022 M5 CS
Join Date: Sep 2016
Location: Phoenix

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2015 BMW M5 CP  [0.00]
2022 BMW M5 CS  [0.00]
It’s raw iron bro - it rusts when the car sits unused or you wash it. One tap of the brakes and the oxidation is gone.
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