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Old 08-23-2009, 04:31 PM   #7 (permalink)
KJSatz
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Join Date: Jun 2008
Location: USA
Posts: 229

Civics Lesson - '08 Honda Civic LX
Team Honda
90 day: 40.53 mpg (US)
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Using E10 does slightly decrease MPG, but it's just not feasible for it to be anywhere near 30%. Even if the ethanol didn't contribute at all, it would just be a 10% reduction...but the ethanol DOES contribute.
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