INVESTIGATION OF RESIDUAL PROPERTIES OF TREATED CAR ENGINE OIL

The lubricating properties of motor oils are of great importance for the normal operation of the crank and gas distribution mechanisms of the engine. In the cylinder-piston group, where the greatest friction forces and loads occur, as a result, the quality of engine oil directly affects the resource of the internal combustion engine (ICE). Of no less importance is the constant presence of a reliable oil film in the contact zone of the support and connecting rod necks of the crankshaft with sliding bearings. In addition to the operating time, the parameters are influenced by external environmental factors, operating conditions and the residual life of the engine at the time of oil filling. Factors affecting the operation are important for the study of oils in order to provide information about the quality of oil and the condition of the car in conjunction with these indicators. To derive oil indicators, it is required to conduct laboratory tests using special equipment in order to give more accurate information about the quality of the engine oil under study. Purpose. Determination of the residual oil life and its effect on the mechanisms of the car engine during operation. Method or methodology of work. The article used laboratory studies using existing instruments. Results. The most informative parameters showing the residual resource of motor oils and their effect on the internal combustion engine are obtained. The scope of the results. The obtained results should be used when working with vehicles that use engine oil and premature identification of cause-and-effect relationships during the repair of internal combustion engines.