Abstract In different researches many different types of alternative fuels are utilized. In view of expositive expression review, it will be inferred that to c's i engine, Bio-diesel will be those most guaranteeing elective fuel. In this venture meets expectations prospects and chances from claiming using 100% immaculate Karanja biodiesel And expanding Karanja biodiesel-diesel mix proportion Similarly as a attempting fuel clinched alongside diesel motor will be setting off on make contemplated by evolving motor loads. Additionally dependent upon experimentation practically ideal mix Also motor parameters are will be prescribed for getting better execution. Karanja biodiesel displays a guaranteeing situation from claiming attempting Likewise elective fills on fossil diesel fuel. Those properties about Karanja biodiesel could make compared satisfactorily with the aspects needed to i c's motor fills uncommonly c i motor. Examinations will be performed to five motor loads, i. E. 1,3,5,7 Also 9 kg utilizing immaculate diesel fuel And blends o Karanja biodiesel-diesel i. E. K10, K20, K40, K60, K80, immaculate Karanja biodiesel with steady speed of diesel motor. Those parameters which will examine On execution need aid brake warm efficiency, shown warm efficiency, particular fuel consumption, mechanical effectiveness and fuel utilization. The consequences of experiments observed with biodiesel blends arecompared with that of baseline pure diesel. In the consequences its being found that the K20 Biodiesel blend has more promising results having lesser fuel consumption.