Monitoring Lubricant Performance in Field Application

The paper presents the physical chemical tests in the analysis of oils that are used for the assessment of his condition. Furthermore the results of experimental research of physical chemical characteristics engines oil was sampled from engines of PUCH 300 GD, Pinzgauer 710 and Ikarbus IK 104 P vehicles, which were in use. The research results are originating from the research of the paper authors. Investigations it was realized that there is a change of physical chemical characteristics of oil for lubrication in the engines vehicle. These changes are in direct dependence on the state of all elements tribomechanical engines system, and depending on their functional characteristics.