The effects of fuel types on lubricating oil properties of bi-fuel motorcycle

Abstract

The use of natural gas as a vehicle fuel claimed to provide several benefits to engine components and effectively reduce maintenance requirements. It does not mix with or dilute the lubricating oil faster and will not cause deposits in combustion chambers as well as on spark plugs to the extend that the use of gasoline does, thereby generally extending the engine oil, piston ring and spark plug. This work compared the effect of both physical and chemical properties of motorcycle lubricating oil used by KRISS MODENAS 110cc motorcycle after running 5000 km using natural gas and gasoline respectively. The lubricating oil properties were tested according to standard ASTM methods. The results have shown that the lubricating oil where natural gas is used as the fuel suffers less property degradation as compared to the lubricating oil when gasoline was used as the fuel.