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原文传递 Octane Requirement Increase of 1988 and 1989 Model Vehicles. Revision.

题名：	Octane Requirement Increase of 1988 and 1989 Model Vehicles. Revision.
关键词：	AUTOMOTIVE FUELS, GASOLINE, TABLES(DATA), TEST VEHICLES, EMISSION, CATALYTIC CONVERTERS, REQUIREMENTS.
摘要：	The need to study octane requirement increase (ORI) with unleaded gasolines became evident in 1970 when manufactures announced that future cars would require catalytic converters to meet 1975 emissions standards and these vehicles would use an unleaded fuel of at least 91 RON. The Coordinating Research Council, Inc. (CRC) initiated a series of ORI programs in 1971 to study the effects of these vehicle, fuel, and emissions changes. Since that time, manufacturers have made many engine and vehicle changes to meet both emissions and fuel economy standards. Because of these continuing changes and the exclusive use of unleaded gasoline in new vehicles, the ORI programs have been continued.
总页数：	34
报告类型：	科技报告