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An Evaluation of Restorative Maintenance on Exhaust Emissions from In-Use Automobiles
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English
Abstract
This paper describes the results of an automobile exhaust emission testing program conducted by the U.S. Environmental Protection Agency. A total of 381 vehicles were subjected to a series of tests before and after various stages of tune-up. The vehicles were low-mileage 1975, 1976, and 1977 models of the three major domestic manufacturers and were obtained from private owners. Significant findings include the confirmation of the poor emission performance of newer vehicles when compared to their standards, the wide extent of maladjustments and disablements and the large emission reductions possible upon correction of these problems.
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Citation
White, J., "An Evaluation of Restorative Maintenance on Exhaust Emissions from In-Use Automobiles," SAE Technical Paper 780082, 1978, https://doi.org/10.4271/780082.Also In
References
- Williams M.E. et. al. “Automobile Exhaust Emission Surveillance - Analysis of the FY72 Program” EPA Report No. 460/2-74-001 February 1974
- Bernard J. et. al. “Automobile Exhaust Emission Surveillance - Analysis of the FY73 Program” EPA Report No. 460/3-75-007 July 1975
- Berens A. P. Hill M. “Automobile Exhaust Emission Surveillance - Analysis of the FY74 Program” EPA Report No. 460/3-76-019 September 1976
- Rutherford J. “Automobile Exhaust Emission Surveillance - Analysis of the FY75 Program” EPA Report No. 460/3-77-022 January 1978
- Liljedahl D. Terry J. “Evaluation of Restorative Maintenance on 1975 and 1976 Light-Duty Vehicles in Chicago, Illinois” Final Report to EPA from Automotive Testing Laboratories under Contract No. 68-03-2378 January 1977
- Washington L.H. “Evaluation of Restorative Maintenance on 1975 and 1976 Light-Duty Vehicles in Washington, D.C.” Final Report to EPA from General Environments Corporation under Contract No. 68-03-2185 March 1977
- Gafford R. Carlson R. “Evaluation of Restorative Maintenance on 1975 and 1976 Light-Duty Vehicles in Detroit, Michigan” Final Report to EPA from Olson Laboratories under Contract No. 68-03-2379 May 1977
- Task reports from Automotive Testing Laboratories and Olson Laboratories under EPA Contracts 68-03-2408 and 68-03-2412