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 - Tractor Generators - by Chris Pratt. As a companion to the articles on three-brush and two-brush generators, it seemed fitting that we should provide our readers with a description of how a generator works in lay terms. The difficulty with all those "theory of operation" texts is that they border on principles of electricity or physics and such. Since I know nothing of either, you will have to put up with looking at the common sense side of how generators work which means we "
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