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      03-20-2013, 07:20 AM   #11
rogers08m3
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Drives: 2008 BMW M3
Join Date: Mar 2013
Location: Caledon, ON

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I've never seen Sonax/IronX dull a shiny wheel. I am not saying it can't happen, I've just never seen/heard it. You could always do a test spot if you do try Sonax.

CG Wheel Wax is about ~4 months I think, so ~3 times a year.
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