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      02-01-2013, 04:21 PM   #2
GaryS
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Drives: 2009 135i 6MT
Join Date: Feb 2010
Location: Maryland

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2009 135i  [3.25]
I use this stuff, 303 wiper treatment. I don't know if it's the best, but it does help.

http://www.amazon.com/303-Products-W.../dp/B002U29OZI