Record Display for the EPA National Library Catalog


Main Title Restorative Maintenance Retesting of 1977 Model Year Passenger Cars in Denver.
Author Jones, Gary T. ;
CORP Author Environmental Protection Agency, Ann Arbor, MI. Technology Assessment and Evaluation Branch.
Year Published 1978
Report Number 79-3 ;TAEB-79-3;
Stock Number PB-290 666
Additional Subjects Automobiles ; Maintenance ; Exhaust gases ; Passenger vehicles ; Exhaust emissions ; Inspection ; Air pollution abatement ; Colorado ; Motor vehicles(1977 models) ; Fuel economy ; Denver(Colorado)
Library Call Number Additional Info Location Last
NTIS  PB-290 666 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 36p
The report describes the results of an exhaust emission testing program in which 24 relatively new vehicles sampled in a Restorative Maintenance Program in Denver were retested approximately one year later. Many vehicles had experienced maladjustments and disablements even though the owner reported that he felt his vehicle had been maintained according to the manufacturer's recommendations. Reductions in average emission levels followed the correction of the maladjustment and disablement actions to a point close to those after the prior tune-up. Modest fuel economy improvements were noted this year, probably due to the fact that the vehicles had overcome the 'green engine' effect.