Analysis of the Impact of Propanol-Gasoline Blends on Lubricant Oil Degradation and Spark-Ignition Engine Characteristics

Alcoholic fuels have recently come to light as a sustainable source for powering today’s vehicles. Various studies investigated the effects of alcoholic on engine efficiency and emission characteristics. However, scarce literature is available their lubricant. Therefore, propanol-gasoline fuel mixtures, with concentrations 9% (P9) 18% (P18) propanol, were made compare characteristics lubricating oil condition that pure gasoline (0 percent propanol (P0)). To determine rate deterioration, evaluated after 100 h operation, suggested by manufacturer. When compared unused lube oil, P18 showed reductions in flash point temperature kinematic viscosity 14% 36%, respectively, at °C. For P18, which contains Fe (27 PPM), Al (11 Cu (14 highest wear element found. The moisture degraded was well within allowable limit three mixtures. With increase percentage blend, performance increased. Compared P9 P0, had partially unburned emissions.