Effect of the duration of car engine operation on the mechanical contaminants in its lubricant

The device and sample preparation technique for the analysis of fine ferromagnetic particles by means of electron microscopy have been described adapted to the determination of disperse contaminants in car engine lubricant. The results of spectral and disperse analysis of these contaminants reveal that their dispersity and composition depend on the car technical conditions, and this analytical approach can be used to estimate the operational capabilities of the lubricant and predict its usability for further operation, as well as to evaluate the extent of the car engine parts wear and determine the engine life before overhaul.