Degradace motorového oleje ve vznětovém motoru užitkového automobilu

This thesis discusses the degradation of engine oil in a diesel engine of utility vehicle. The first part focuses on the fundamental issues of science discipline, which deals with identification of existing motors current status using information obtained from the analysis of the lubricants and fundamental character of lubricants. The next chapter is to outline the division oil production and their causes and methods of actual degradation. The actual chapter is also devoted to the lubrication system and its function. The experimental part deals with the actual provisions of the degradation of engine oil. There is a described process of taking individual samples and the methods for the determination of the examined physical quantity. Furthermore, the results themselves are processed and shown in the organized charts, where values were interleaved by linear regression and determination coefficients of R2 determination. In the end, conclusion of summary and discussion of the result are made