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in the motortrend article i dont see where it says anything about more / better mileage.
Previous assumptions held that ethanol's lower energy content directly correlates with lower fuel economy for drivers. Those assumptions were found to be incorrect. Instead, the new research strongly suggests that there is an "optimal blend level" of ethanol and gasoline--most likely E20 or E30--at which cars will get better mileage than predicted based strictly on the fuel's per-gallon Btu content
this sounds like a fancy way of pushing ethanol with new and improved "less loss than expected"
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