Ethanol Blend Fuels in Internal Combustion Engines: Effects on Performance, Fuel Stability, and Emissions: A Review – American Journal of Student Research

American Journal of Student Research

Ethanol Blend Fuels in Internal Combustion Engines: Effects on Performance, Fuel Stability, and Emissions: A Review

Publication Date : Dec-17-2025

DOI: 0.70251/HYJR2348.36985994


Author(s) :

Godghate Shantilp Sushant.


Volume/Issue :
Volume 3
,
Issue 6
(Dec - 2025)



Abstract :

Currently, internal combustion engines (ICE) utilize gasoline-based fuels to generate energy. These fuels have the tendency to emit products of incomplete combustion, as well as toxic and greenhouse gases. Ethanol can be used as an additive to gasoline fuels to limit these downsides. The objective of this study is to evaluate the impact of ethanol–gasoline blends on engine performance, emissions, corrosion, and blend stability. To evaluate whether the addition of ethanol is beneficial, the impacts of the alcohol on engine performance, engine emissions, blend stability, and corrosion were reviewed. This review indicates increases in power, torque, and efficiency by 5%, 3%, and 2% respectively; decrease in hydrocarbon (HC) and carbon monoxide (CO) emissions by roughly 30% and 40% respectively; increase in nitrogen oxides (NOX) and carbon dioxide (CO2) emissions by roughly 50% and 5% respectively; and mixed results for toxic emissions. These results were all compared to the data from base gasoline. It is also noted that temperature is a major factor for the stability of ethanol-gasoline blends and that corrosive properties of the fuel depend on the fuel’s water content.