Biofuels is a good replacement of petroleum fuels. Biogas can be used in I.C engine, because of its better mixing ability with air and clean burning nature. The present study was conducted on rice bran oil methyl ester as a pilot fuel and biogas as a dual fuel used in C.I engine. The blends B20, B40, and B60 of rice bran methyl ester used as an injected fueland biogas were inducted through the intake manifold. The different flow rates of biogas in which diesel used as pilot fuel were also compa ...