Research Results of Influence of Synthetical Additive on Temperature Parameters of Moto Oils

The results of the study of the temperature parameters of the partially synthetic motor oil RosneftMaximum 10 W-40 SL/CF are presented, and the influence of the synthetic additive in the amount of 20% on the temperature parameters of the motor oil is determined. The device for oil thermostating of the photometric appliance and electronic scales were used for this research. The research technique of motor oils in two stages using devices for thermostating of the motor oils, photometric appliance and electronic scales is described. At the first stage, semi-synthetic motor oil RosneftMaximum 10 W-40 SL/CF was experienced; at the second one, a synthetical additive in the amount of 20% was added. The dependences of optical density, potential resource, volatility with time and testing temperature of synthetic motor oil are constructed. Time to reach optical density, volatility and thermo-oxidative stability factor was determined on these dependencies. Further, with the help of these findings, a dependence of time to reach set values of optical density, volatility and thermal-oxidative stability factor with temperature is constructed, using them the temperatures of the onset of oxidation, volatility and change thermal-oxidative stability factor, and the critical temperatures of motor oil and of motor oil with a synthetical additive in the amount of 20% are determined.