Yeah, here in MO all unleaded gasoline must have 10% ethanol in it. I know this lowers MPG, but do you know by how much? Your move from 48 to 44 implies about an 8% decrease in performance, but that doesn't quite square with me (that's like .1g ethanol having the same as .02g gasoline).... Obviously the driving and routes you had weren't exactly the same for both those tanks though. Any thoughts?
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