? 2021, Scibulcom Ltd.. All rights reserved.This article evaluates the change and efficiency of the mixed fuel consumption of diesel cars, as well as the dependence of the fuel composition on the mixed fuel consump-tion. Some indicators such as cetane index, density, kinematic viscosity and content of polycyclic arenas were studied. The tests were performed with two car models, two diesel fractions and their mixtures. It was proved that the diesel raw materials and their diesel blends have different consumption after testing in real conditions. The efficiency of fuel consumption is calculated.
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