Tribological and emission studies on two stroke petrol engine lubricated with sunflower methyl ester

Abstract

This study presents testing of sunflower methyl ester (SFME) and manufacturer’s recommended oil (MAK 2T oil) mixed in definite proportions as two stroke crankcase lubricants. ASTM four ball wear tests conducted with SFME and with nano copper particle additives resulted in less wear scar in balls, ensuring less wear in engine with SFME + 1.5% nano copper. Emission analysis for smoke, conducted on definite proportion of SFME along with MAK 2T oil [1.5% blend (98.5% MAK 2T oil + 1.5% SFME with additives)] using an exhaust gas analyser, resulted in reduction of HC and CO.