I use it. It lengthens the time I between wheel cleanings by a few weeks. For the 10 or so dollars it costs I would say that it is worth it.
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2009 135i Coupe
Sedona Red/Beige Boston Leather
6MT / ZPP / ZSP / Nav / Prem. Hi-Fi / Sirius / CA / Heated Seats (you keep the ski bag) / Park Dist. / HD Radio (because it was free)
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