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Light Duty Automotive Fuel Economy …. Trends Through 1978
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English
Abstract
This is an analysis of fuel economy data compiled by the U.S. EPA on passenger cars from model years 1958-1978, and light-duty trucks from 1975-1978. The paper includes new fuel economy data on pre-1975 cars, which indicates that fleet average MPG for the older models is slightly higher than had been previously estimated.
Analysis of 1977-78 passenger cars and light trucks' economy characteristics in terms of the new EPA/DOE “Vehicle Size” classes provides new insight into fleet MPG characteristics as related to model changes.
The methodology for isolating fleet and individual manufacturer fuel economy changes due to specific factors such as system optimization and weight mix shifts has been refined, and is applied for the first time to trucks and to comparison of 49-states and California vehicles.
The vehicle fleet which is the basis of the analysis includes the top-selling 18 car makers and 8 truck manufacturers.
Authors
Citation
Murrell, J., "Light Duty Automotive Fuel Economy …. Trends Through 1978," SAE Technical Paper 780036, 1978, https://doi.org/10.4271/780036.Also In
References
- Murrell D. Pace R. Service G. Yeager D. “Light Duty Automotive Fuel Economy - Trends through 1977,” SAE Paper 760795 Automobile Engineering Meeting Dearborn, Michigan October 1976
- The Aerospace Corporation “Passenger Car Weight Trend Analysis,” EPA-460/3-73-006a El Segundo, California January 1974
- Austin T. Hellman K. “Fuel Economy of the 1975 Models,” SAE Paper 740970 Automobile Engineering Meeting Toronto, Canada October 1974
- Platte L. Personal Communication Characterization and Analysis Branch, ECTD, EPA February 1977
- U.S. Department of Transportation Federal Highway Administration News Release January 1975