Study of Automotive Emission Control Technology: Fuel Switching Analysis

摘要

This interim report examines the emissions impact of fuel switching on operating vehicles designed to use unleaded gasoline or leaded gasoline, one of the major factors responsible for the failure of in-use vehicles to meet emission standards. An analysis is made of the number of vehicles subject to fuel switching, the frequency at which it occurs, and the impact on individual vehicle emissions. A methodology is developed for predicting the total vehicle emissions impact of fuel switching, and projections are made of the increase in vehicle emissions from 1975 through 1990.