E85 Tax Rate and Definition

The minimum motor vehicle fuel tax rate on E85 is $0.17 per gallon, compared to the conventional motor fuel tax rate of $0.24 per gallon. E85 is defined as an alternative fuel that is a blend of denatured ethanol and hydrocarbon and typically contains 85% ethanol by volume, but must contain at least 70% ethanol by volume, and complies with ASTM Standard D5798-99.