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India has recently shifted from BSVI 1.0 emissions norms to BSVI 2.0 RDE (Real Drive Emission) norms ready with implementation of conformity factors for the measurement of on-road emissions. The discrepancies between emission values measured in the laboratory (under controlled ambient conditions) and actual emission values on the road (under real driving conditions) will be reduced with the implementation of BSVI 2.0. Fuel impacts the vehicular tail pipe emission in a greater way and various regulated emission pollutants are reduced significantly. Government initiated fuel formulations like oxygenated fuels (E10 & E20) and OMCs (IOCL) initiated differentiated diesel fuels plays significant role in achieving the targets for real driving emissions.

Butanol is one of the potential alternative fuels that can be used in IC engines in the same way as gasoline. This paper investigates the application of butanol as a blending component for gasoline fuel used in single cylinder four stroke motorcycle engine. Different blending ratio of 5, 10, 20 & 30% butanol-gasoline prepared were used for the study. The motorcycle engine tested on the chassis dynamometer had displacement of 100 cm3. The performance testing under steady state were simulated by running the vehicle on road load simulation and wide open throttle test modes at steady speeds of 40, 50, 60 and 70 km/h. The fuels were also examined using transient Indian Driving Cycle. The test results indicated that butanol-gasoline blended fuel can be a promising alternate for automotive application.