Coordinating Research Council High and Intermediate Temperature Driveability Programs 881671

Cooperative test programs were conducted during 1984 and 1985 by the Coordinating Research Council (CRC) to investigate the driveability of hydrocarbon-only and hydrocarbon-alcohol blends. The 1984 program was the first CRC intermediate temperature program on fuels containing alcohols. The 1985 program evaluated the performance of hydrocarbon and hydrocarbon-alcohol blends at higher temperatures. Both programs contained three vehicle subsets that were classified by fuel delivery system-carbureted, port fuel-injected, and throttle body fuel-injected vehicles. Both fuel-injected vehicle sets gave significantly lower demerits compared to carbureted vehicle sets. Fuel volatility and alcohol type/content were found to be significant variables for many of the fuel combinations evaluated.


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