RT Journal Article SR Electronic A1 Holubek, Michal A1 Pexa, Martin A1 Pavlu, Jindrich A1 Cedík, Jakub A1 Vesela, Katerina A1 Kuchar, Peter T1 Analysis of the Influence of Fuel on Oil Charge and Engine Wear JF Manufacturing Technology Journal YR 2019 VO 19 IS 1 SP 64 OP 70 DO 10.21062/ujep/245.2019/a/1213-2489/MT/19/1/64 UL https://journalmt.com/artkey/mft-201901-0011.php AB The combustion engine is a very widespread energy source for many machines and devices. Diesel, gasoline, LPG, CNG, as well as many biofuels such as ethanol, butanol, etc. are used as propellants at the present time. During the running of the internal combustion engine, some fuels penetrate into the crankcase and degrade the engine oil. This potentially reduces the lubricating ability of the oil and changes its degradation process. Submitted paper follows possible changes in lubricating capabilities of oil used in engines with specific fuels: n-butanol, LPG and diesel. Different type of fuel used in combination with an inappropriate operating mode might have a significant influence on the oil and consequently on the engine wear (monitored by a laser particle analyzer). This paper also deals with presence of various types of particles in the engine oil. Results demonstrate proceeding changes noticed in oil and also how was the degradation process effected.