[roosterk0031]

Cliff notes

"The E85 fuel blend consumed less BTU’s per mile than all other
ethanol fuel blends evaluated. This improvedconversion of energy (BTU’s) for the E85
fuel blend was 13%, 9%, and 14% respectively for the light-, medium-, and heavy-loads
when compared to E10"

"The consumption of fuel or energy per horsepower hour also is a direct indication
of the efficiency of a vehicle. In the evaluations, more fuel was consumed per
horsepower hour on a volume basis with the higher ethanol fuel blends than with the
E10 fuel blend. However, the amount ofenergy (BTU’s) consumed per horsepower
hour actually decreased with the E85 fuel compared to the E10 fuel"

"emissions decreased as the ethanol content of the fuel increased"

In penny/mile it really comes down to the price of each fuel.