This paper reviews the structural and group compositions of three winter base diesel fuels and their influence on the low-temperature and lubricating properties of the fuels. It is shown that a high content of saturated hydrocarbons, primarily medium-molecular-mass n-alkanes, and arenes with a higher proportion of substitution worsens the low-temperature properties. A decrease in the proportion of medium-molecular-mass alkanes and even a slight increase in the content of bi- and polycyclic aromatic hydrocarbons degrades the lubricating properties of the fuel. The influence of the component composition of the diesel fuels on the effectiveness of anti-wear and depressor-dispersing additives was noted. A study of the compatibility of additives of different functionalities revealed that an anti-wear additive based on tallow-oil fatty acids did not affect the activity of a depressant-dispersing additive while the combined use of these additives slightly worsened the lubricating properties but did not shift this indicator beyond the established standards.
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