Experimental Characteristics of Bioethanol-Gasoline Blended Fuels: Analysis of Air-Fuel Ratio, Exhaust Emissions, and Fuel Consumption in Spark Ignition EnginesNanda Gustri Rizki, Wawan Purwanto, Ahmad Arif and Ichsan NasutionE3S Web Conf., 706 (2026) 02001DOI: https://doi.org/10.1051/e3sconf/202670602001