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An Analysis of Ford Lease Fleet Fuel Economy Data Through 1986 Models
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English
Abstract
On-road fuel economy, given the variety of customer driving experiences, tends to be lower than that obtained under controlled laboratory conditions. Since the 1978 model year, Ford Motor Company (Ford) has been collecting and analyzing on-road fuel economy data from Ford vehicles leased to company employees for evaluation purposes. Based on data collected during the summer months, 1985-86 model passenger car en-road fuel economy was approximately 47% greater than that obtained with 1978 models. Also, on-road results continue to parallel Laboratory values, remaining approximately 15% below the metro/highway value.
City and highway fuel economy values are contained on a label affixed to all new cars. In 1985, the label values were adjusted to better represent the on-road customer fuel economy. An analysis of actual on-road results compared to the label values demonstrates that the adjustment factors are accomplishing the intended purpose.
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Citation
Curry, D. and Risen, C., "An Analysis of Ford Lease Fleet Fuel Economy Data Through 1986 Models," SAE Technical Paper 871118, 1987, https://doi.org/10.4271/871118.Also In
References
- South N. E. Raja R. “In-Service Fuel Economy” SAE Paper 790227 February 1979
- South N. E. “Further Results from the 1978 Fuel Economy Survey,” SAE Paper 790931 October 1979
- South N. E. “1978 to 1980 Ford On-Road Fuel Economy,” SAE Paper 810383 February 1981
- McKenna J. C. South N. E. “On-Road Fuel Economy for 1978-1981 Ford Vehicles,” SAE Paper 820789 June 1982
- Kulp D. L. McKenna J. C. “Fuel Economy Ratings vs. Road Experience - An Analysis of Ford's 1982 Lease Fleet,” SAE Paper 831034 June 1983
- Kulp D. L. McKenna J. C. “An Analysis of Ford Lease Fleet Fuel Economy Data, Through 1984 Models” SAE Paper 851215 May 1985
- Hellman K. H. “Adjustments to EPA Fuel Values -Stage II Results,” EPA Report November 1982