PT  - JOURNAL ARTICLE
AU  - Hönig, Vladimír
TI  - Determination of Oil Change Interval for Gasoline Engines According to the Amount of Non-Ferrous Metals
DP  - 2017 Oct 1
TA  - Manufacturing Technology Journal
PG  - 710--717
VI  - 17
IP  - 5
AID - 10.21062/ujep/x.2017/a/1213-2489/MT/17/5/710
IS  - 12132489
AB  - Friction is closely related to every moving machine and fundamentally affects efficiency and service life. Wear tracking of moving and non-moving parts of the engine mechanism is important for expressing the wear trend. The wear and tear trend is specific for gasoline engines in urban traffic. The increase in the number of abrasive non-ferrous particles (Al, Cu, Ni, Cr, Sn, Si) is monitored in Škoda Octavia vehicles. The statistical evaluation of nomogram the wear and the determination of the optimum oil change interval of a vehicle group with sparkignition engines are performed for individual non-ferrous particles. The main aim of the article is to propose and verify the method of determination of the optimal oil change interval using Atomic Absorption Spectroscopy, Thin Layer Chromatography and using limit values of discriminatory analysis. On the basis of the results of the analyses, it is clear that the oil change interval by the manufacturer is inadequate and the oil level must be monitored.