Transportation energy data book: edition 23 - Oak Ridge National ...

The Federal Highway Administration cautions that data from 1993 on may not be directly comparable to earlier years. Some
states have improved reporting procedures in recent years, and the estimation procedures were revised in 1994. Prior to
the Energy Policy Act of 1992, gasohol was defined as a blend of gasoline and at least 10%, by volume, alcohol. Effective
January 1, 1993, three types of gasohol were defined: 10% gasohol—containing at least 10% alcohol; 7.7%
gasohol—containing 7.7% alcohol but less than 10%; and 5.7% gasohol—containing at least 5.7% alcohol but less than
7.7%. See Table 2.3 for details on oxygenate usage.
a Estimated for 1980–92 as 10% of gasohol consumption.
b Consists primarily of diesel fuel, with small quantities of liquified petroleum gas.
c Data for gasoline and gasohol cannot be separated in this year.
d Data are not available.
Table 2.9
Highway Usage of Gasoline and Special Fuels, 1973–2001
(billion gallons)
Ethanol used
Year Gasoline Gasohol in gasohola Total gasoline
and gasohol Dieselb Percent Total highway
diesel fuel use
1973 c c c 100.6 9.8 8.9% 110.5
1975 c c c 99.4 9.6 8.8% 109.0
1980 100.7 0.5 0.0 101.2 13.8 12.0% 115.0
1981 98.9 0.7 0.1 99.6 14.9 13.0% 114.5
1982 96.2 2.3 0.2 98.5 14.9 13.1% 113.4
1983 95.9 4.3 0.4 100.1 16.0 13.8% 116.1
1984 96.0 5.4 0.5 101.4 17.3 14.6% 118.7
1985 95.6 8.0 0.8 103.6 17.8 14.6% 121.3
1986 98.6 8.1 0.8 106.8 18.4 14.7% 125.2
1987 101.8 6.9 0.8 108.7 19.0 14.9% 127.7
1988 101.7 8.1 0.8 109.8 20.1 15.5% 129.9
1989 103.7 6.9 0.7 110.6 21.2 16.1% 131.9
1990 102.6 7.5 0.8 110.2 21.4 16.3% 131.6
1991 99.3 8.6 0.9 107.9 20.7 16.1% 128.6
1992 102.1 8.8 0.9 111.0 22.0 16.5% 132.9
1993 103.4 10.3 1.0 113.7 23.5 17.1% 137.2
1994 104.0 11.0 1.0 115.0 25.1 17.9% 140.1
1995 104.0 13.1 1.2 117.1 26.2 18.3% 143.3
1996 107.4 12.1 1.1 119.5 27.2 18.5% 146.7
1997 106.2 14.7 1.3 120.9 29.4 19.6% 150.3
1998 110.7 14.0 1.3 124.7 30.2 19.5% 154.9
1999 114.6 14.2 1.3 128.7 31.9 19.9% 160.7
2000 112.6 16.3 1.5 128.9 33.4 20.6% 162.3
2001 112.3 17.4 1.5 129.7 33.4 20.5% 163.1
Average annual percentage change
1973–2001 d
d d
0.9% 4.5% 1.4%
1991–2001 1.2% 7.3% 5.2% 1.9% 4.9% 2.4%
Source:
U.S. Department of Transportation, Federal Highway Administration, Highway Statistics 2001, Washington, DC,
2002, Tables MF-21 and MF-33E, and annual.
(Additional resources: www.fhwa.dot.gov)
TRANSPORTATION ENERGY DATA BOOK: EDITION 23—2003
2–11