Quote:
Originally Posted by pwd72s
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Ethanol = 75,670 BTU's per gallon
Gasoline = 115,400 BTU's per gallon
These figures from a sidebar in the original article. I'll let the math whizzes here figure the % age...the sidebar says that a gallon of pure ethanol will take you 66% of the distance a gallon of gas will.
I gotta wonder how much Archer-Daniel-Midlands donates to political campaigns...?
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Actually, the reason that the E10 and E85 may not deliver the expected mileage is that Ethanol loves water. The above numbers are for anhydrous ethanol. If it contains 50% water, then the BTU numbers for the ethanol portion are 1/2.
I noticed the Mileage difference between Gasoline purchased in California (E10) and Arizona (5% MTBE), back when I lived there. And it was more than 3%.