E10 has 3% less energy than straight gas,, so where do you get a 10% drop in fuel economy ?
Depending on the engine, research by several universities found anywherte from a 3% loss to a 1% gain using E10. My own experience has been similar.
As for the efficiency of Ethanol production cost, the latest numbers out of USDA is that modern Ethanol production shows a 33% energy gain. For each BTU of Diesel fuel, natural gas or coal energy you apply to growing, transporting converting to Ethanol, you get 33% more energy out than you put in. Where does the 33% come from ? It comes from the free sunlight that grew the crop to produce the starch/ sugar/ Ethanol .
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Today's Featured Article - Grain Threshing in the Early 40's - by Pat Browning. The setting is rural Wisconsin, halfway between East Troy and Elkhorn, on Hodunk Road, our nation was at war, and I was 6, 7 and 8 years old. George was our "threshing neighbor." He was the one with the threshing machine, a JI Case on steel wheels, and he pulled it to our farm with a JI Case standard tractor also on steel. In those days, steel wheeled implements were common. The roads were general gravel, so the lugs cutting into them wasn't a problem. George would set up the thresher, s
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