In this study. the effects of the use of improved fusel oil on engine performance and on exhaust emissions in a spark-ignition engine were investigated experimentally in consideration of the water. gum. and moisture content at high compression ratios according to TS EN 228 standards. https://www.spidertattooz.com/CND-Shellac-Shade-Sense-Spring-2023-Collection-0-25-oz-p13246/