Abstract— Developing diesohol, the diesel mixed to ethanol and emulsifiers, is interesting nowadays because of a non-complex method and low cost. Moreover, the study of using diesohol combined to syngas has a few pieces of research. The main objective of this research is to study the use of diesohol combined to supercharging syngas from gas flow rate 76 to 125 lpm on dual fuel with a turbocharging diesel-engine generator. Engine speed was adjusted from 1,000 to 1,600 rpm at full load. Syngas was produced from a downdraft gasifier, as charcoal biomass was used the primary fuel. Results of engine testing confirmed that engine performance was decreased as emissions were also decreased to use diesohol only. On the other hand, use of diesohol combined to compressing syngas up to 125 lpm on dual fuel mode was more engine performance than using this oil only, and the fuel saving was increased to 22.83% at 1,600 rpm. The emission compositions in the exhaust gas were enormously increased with increasing syngas quantity.