The conditions you're describing are the worst possible combination for getting good gas mileage. Your commute isn't even long enough to get the car warmed up.
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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
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