Accession Number : ADA133369

Title :   1981 CRC Octane Number Requirement Survey.

Corporate Author : COORDINATING RESEARCH COUNCIL INC ATLANTA GA

Report Date : JUL 1983

Pagination or Media Count : 270

Abstract : In the 36th annual statistical survey of current model vehicles conducted by the Coordinating Research Council, Inc., test data were obtained on 434 1982 model vehicles, including nine select models of special interest. Maximum octane number requirements were determined by testing under part-throttle conditions, as well as at maximum-throttle. Included also in the E-15-82 technique are the octane number requirements as determined by the 50th percentile driving profiles derived from past chase-car studies. This method, referred herein as the 50th percentile acceleration technique, is designed to more nearly represent customer-type driving. Surface ignition and rumble, if present, were also reported. Passenger cars and light-duty trucks including non-commercial vans (1/2-3/4 ton without four-wheel drive) were tested according to a weighted distribution.

Descriptors :   *Gasoline, *Automotive vehicles, *Ratings, Passenger vehicles, Trucks, Vans, Surveys, Antiknock, Ignition, Throttling, Performance(Engineering)

Subject Categories : Surface Transportation and Equipment
      Combustion and Ignition
      Fuels

Distribution Statement : APPROVED FOR PUBLIC RELEASE