INVESTIGATION OF LUBRICITY ENHANCEMENT AND TRIBOLOGICAL PROPERTIES OF SYNTHETIC FUELS IN HIGH-EFFICIENCY PISTON DEVICES

This paper reviews existing studies on enhancing the lubricity and tribological properties of synthetic liquid fuels used in high-efficiency piston devices. The effectiveness of ZnO and MoS₂ nanoparticles, organomolybdenum compounds, biodiesel, fatty acid methyl esters (FAME), and locally developed GTL-SN additives was analyzed. The studies show that additives reduce wear scar diameter (WSD), promote the formation of stable tribofilms on metal surfaces, and significantly improve the lubricating properties of synthetic fuels. Based on this review, functional additives are shown to enhance the performance and durability of piston devices operating under high-load and high-temperature conditions