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Join Date: Jul 2000
Location: Houston, Tejas
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Originally Posted by pwd72s View Post

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...?
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%.
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Old 06-09-2008, 04:52 AM
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