CHEMMOTOLOGY LOW-VOLATILITY MOTOR OILS. DEVELOPMENT AND PRODUCTION V. G. Spirkin, A. P. Nazarkin, I. V. Mitin, and V. V. Korchagin UDC 665.637.6:621.9.079 ____________________________________________________________________________________________________ I. M. Gubkin Russian State University of Oil and Gas. Ryazan' PPK Closed Joint-Stock Company. The results of developing, manufacturing, and testing SAE 15W-40 CF-4/SG oils in the D-245 engine are reported. Due to the decrease in volatility and optimization of the composition, consumption of oil to loss in burning was reduced by 32% and the environmental characteristics improved correspondingly.