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Estimated Consumption of Alternative and Replacement Fuels for Highway Vehicles
Numbers may not add to totals due to rounding.
Beginning with 2003 data, the methodology used to develop the estimates of alternative fueled vehicles (AFVs) in use and alternate transportation fuel consumption were changed. The data reflect this new methodology.
The traditional fuel consumption data in this table are slightly different from the fuel consumption data in table 4-9 due to different sources.
KEY: N = data do not exist; R = revised.
a Total fuel consumption is the sum of Alternative fuels, Gasoline, and Diesel. Oxygenate consumption is included in Gasoline consumption.
b The remaining portion of 85% methanol, 85% ethanol, and 95% ethanol fuels is Gasoline. Consumption data include the Gasoline portion of the fuel.
c Excludes gasoline-electric hybrids.
d Includes a very small amount of other ethers, primarily tertiary-amyl-methyl-ether and ethyl-tertiary-butyl-ether.
e Gasoline consumption includes Ethanol in gasohol and Methyl-tertiary-butyl-ether.
f Diesel includes Biodiesel.
U.S. Department of Energy, Energy Information Administration, Alternatives to Traditional Transportation Fuels 2011, table C-1 and similar tables in earlier editions, available at as of Apr. 17, 2013.