Focus Fanatics - View Single Post - Lost 8MPG with New Tires!
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Old 09-23-2012, 04:45 PM   #11
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Join Date: Sep 2007
Fan#: 50210
Location: SoCal, CA
What I Drive: 2000 SE Wagon

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Air pressure too low

Directional tires mounted backwards (don't think it would affect mileage, but maybe)

Alignment (new tires have squirmier tread blocks, which may be more rolling resistance with an alignment problem)
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