Focus Fanatics - View Single Post - E10 versus E0, my observations
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Old 09-22-2012, 04:36 PM   #10
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Location: Southeast, TN
What I Drive: 2008 Roushcharged F-150 Screw,

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After monitoring over a span of 6 tanksfull, I have observed that the dash indicator mpg is much more accurate when burning pure gas than when burning E10. When burning E10, the actual mpg is typically 5 mpg less than the dash indicated mpg. Probably has to do with the lower energy content of E10, but I'll leave it to the scientist/engineers to analyze the reasons why this is the case. But that is what I have observed.
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