Abstract
This paper analyzes the efficiency of utilization of gasolines with various octane numbers by mass-produced carburetor engines manufactured in the period 1932-1982, and also the advanced-design front-wheel drive automobiles. For a more objective determination of the optimum knock resistance of gasolines, the authors examine the relationship between the specific gasoline consumption in 1,000 tonne-km of useful opweration of trucks with various wheel arrangements, on gasolines differing in octane number. The specific gasoline consumption drops off considerably as the octane number is raised from 66 to 76. When the increasing consumption of petroleum fractions in the production of higher-octane gasolines is taken into account, as well as the dynamics of change in automotive and engine operating indexes, the authors found that the maximum distance traveled per kg of petroleum raw material has been achieved by automobiles operating on A-72 and A-76 gasolines.
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