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Old 07-25-2012, 10:10 AM   #5 (permalink)
PaleMelanesian
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Join Date: Dec 2007
Location: Texas
Posts: 2,321

PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
Team Honda
Wagons
90 day: 44.06 mpg (US)
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Check your exhaust manifold. Mine had a crack at the O2 sensor and when it opened up enough my idle was all over the place. Stumbling at 300 rpm, then surging to 1800. Replacing the mani-cat fixed it.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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