Authors: A.A. Ryabinin, N.V. Geil, K.A. Bolshakov

Title of the article: Method of predicting indicators of thermal oxidative stability of KIXX G1 5W-40 SN/CF synthetic engine oil

Year: 2023, Issue: 1, Pages: 52-61

Branch of knowledge: 2.5.9. Methods and devices for monitoring and diagnosing materials, products, substances and the natural environment

Index UDK: 550.8.05

DOI: 10.26730/1999-4125-2023-1-52-61

Abstract: The article presents a method for predicting the indicators of thermal-oxidative stability, including the optical density and volatility of motor oils according to abbreviated temperature information, the method is based on the use of an analytical model for calculating the indicators of thermal-oxidative stability according to two temperatures for the third temperature, as well as determining the temperature range of the performance of motor oils, including the temperatures of the beginning of the processes of oxidation and evaporation and the critical temperatures of these processes, which makes it possible to compare them and select more heat-resistant ones, removing the laboriousness of experimental studies. This method allows you to expand the information content of using KIXX G1 5W-40 SN / CF engine oil, as well as increase the service life, thereby increasing the environmental component when using georesources, engine oil can be used for a longer time without losing its declared properties. This method of predicting the indicators of thermal-oxidative stability, which involves the use of a temperature control device, a photometric device, and electronic scales, allows expanding information on the quality of motor oils, including the temperatures of the onset of oxidation and evaporation processes, the critical temperatures of these processes, and the temperature range of application. The established linear dependence of the decimal logarithm of the temperature control time during oxidation and evaporation of the studied engine oil on temperature, which allows predicting the decimal logarithms of the temperature control time of the oxidation and evaporation processes for any temperature, and the calculation of antilogarithms determines the temperature control time.

Key words: temperature control optical density volatility analytical calculation model temperature of the beginning of oxidation and evaporation processes critical temperatures of oxidation and evaporation processes temperature range of lubricating oil performance georesources ecological component of georesources

Receiving date: 03.11.2022

Approval date: 15.01.2023

Publication date: 30.03.2023

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