Table 4-23. Average Fuel Efficiency of U.S. Passenger Cars and Light Trucks
|Average U.S. passenger car fuel efficiency (mpg) (calendar year)|
|Other 2-axle 4-tire vehicle||12.2||14.3||16.1||17.0||17.3||17.4||17.3||17.3||17.2||17.2||R17.2||17.1|
|New vehicle fuel efficiency (mpg)a (model year)|
|Light-duty vehicle (passenger cars plus light trucks)|
|Light truck (<8,500 lbs GVWR)|
|CAFE standards (mpg)a (model year)|
a Assumes 55% city and 45% highway-miles. The source calculated average miles per gallon for light-duty vehicles by
taking the reciprocal of the sales-weighted average of gallons per mile. This is called the harmonic average.
b 2 Wheel Drive/4 Wheel Drive. No combined figure available for this year.
KEY: CAFE = Corporate Average Fuel Economy; GVWR = gross vehicle weight rating; mpg = miles per gallon; R = revised; U = data are not available.
NOTE: The fuel efficiency figures for light duty vehicles represent the sales-weighted harmonic average of the combined passenger car and light truck fuel economies.
Average U.S. passenger car fuel efficiency:
1980-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-201A.
1995-98: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.
New vehicle fuel efficiency (based on model year production):
1980-90: U.S. Environmental Protection Agency, final fuel economy calculations for the U.S. Department of Transportation, National Highway Traffic Safety Administration, as cited in Internet site www.nhtsa.dot.gov/cars/problems/fuelecon/index.html.
1991-99: Manufacturer's preliminary estimates for the U.S. Department of Transportation, as cited in National Highway Traffic Safety Administration, Automotive Fuel Economy Program, Twenty-Fourth Annual Report to Congress, Calendar Year 1999, Internet site www.nhtsa.dot.gov/cars/problems/fuelecon/index.html.
1980-99: U.S. Department of Transportation, National Highway Traffic Safety Administration, Automotive Fuel Economy Program, Twenty-Fourth Annual Report to Congress, Calendar Year 1999, Internet site www.nhtsa.dot.gov/cars/problems/fuelecon/index.html.