Impact of Engine Oil change on vehicular exhaust emissions

Abstract

This study looked at how engine oil changes affected vehicle emissions from a variety of fuel sources and vehicle classes. Using portable emission analyzers, each car was initially examined and evaluated for baseline emissions of hydrocarbons (HC), carbon monoxide (CO), and smoke opacity (for diesel vehicles). Emissions were retested in the identical settings after a routine engine oil change. According to the findings, all vehicle kinds' emissions are considerably decreased by using new engine oil. Automobiles, motorbikes, and motorcycle rickshaws that run on gasoline demonstrated CO reductions ranging from 9% to 67% and HC reductions from 21% to 52%. With a reduction of 37.5% in smoke, the diesel bus showed a noteworthy decrease in CO, HC, and smoke emissions. The autorickshaw running on LPG showed the most gains, with CO and HC emissions falling by 60% and 49%, respectively. This study emphasizes how crucial routine engine oil changes are for reducing vehicle emissions, which can enhance air quality and protect the environment.