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

4–28
Of the tested vehicles, the 1994 Oldsmobile Olds 88 had the greatest fuel economy loss from 55 mph to 75 mpg.
The 1997 Toyota Celica tested fuel economy was slightly better at 65 mph than at 55 mph.
Speed
(mph)
1988
Chevrolet
Corsica
Table 4.25
Steady Speed Fuel Economy for Vehicles Tested in the 1997 Study
(miles per gallon)
1993
Subaru
Legacy
1994
Oldsmobile
Olds 88
1994
Oldsmobile
Cutlass
1994
Chevrolet
Pickup
1994 Jeep
Grand
Cherokee
TRANSPORTATION ENERGY DATA BOOK: EDITION 23—2003
1994
Mercury
Villager
1995
Geo
Prizm
5 10.0 14.5 10.5 5.1 7.9 8.2 12.3 18.1 19.1
10 16.8 24.7 14.9 7.9 16.0 11.2 19.0 23.1 34.1
15 17.7 31.9 22.2 11.4 16.3 17.5 22.4 38.9 41.7
20 21.7 34.4 26.3 12.5 19.9 24.7 25.8 39.4 46.0
25 23.9 37.4 28.3 15.6 22.7 21.8 30.8 41.7 52.6
30 28.7 39.7 29.0 19.0 26.3 21.6 30.3 40.0 50.8
35 28.6 38.0 30.9 21.2 24.3 25.0 26.1 39.1 47.6
40 29.2 37.0 33.2 23.0 26.7 25.5 29.0 38.9 36.2
45 28.8 33.7 32.4 23.0 27.3 25.4 27.8 42.3 44.1
50 31.2 33.7 34.2 27.3 26.3 24.8 30.1 39.1 44.8
55 29.1 37.7 34.6 29.1 25.1 24.0 31.7 37.7 42.5
60 28.2 35.9 32.5 28.2 22.6 23.2 27.3 36.7 48.4
65 28.7 33.4 30.0 25.0 21.8 21.3 25.3 34.1 43.5
70 26.1 31.0 26.7 22.9 20.1 20.0 23.9 31.7 39.2
75 23.7 28.8 24.0 21.6
Fuel economy loss
18.1 19.1 22.4 28.3 36.8
55–65 mph 1.4% 11.4% 13.3% 14.1% 13.1% 11.3% 20.2% 9.5% -2.4%
65–75 mph 17.4% 13.8% 20.0% 13.6% 17.0% 10.3% 11.5% 17.0% 15.4%
55–75 mph 18.6% 23.6% 30.6% 25.8% 27.9% 20.4% 29.3% 24.9% 13.4%
1997
Toyota
Celica
Source:
B.H. West, R.N. McGill, J.W. Hodgson, S.S. Sluder, D.E. Smith, Development and Verification of Light-Duty Modal Emissions and
Fuel Consumption Values for Traffic Models, Washington, DC, April 1997, and additional project data, April 1998.
(Additional resources: www.fhwa-tsis.com)
Note:
For specifications of the tested vehicles, please see Table 4.21.