The fuel efficiency was 16.77km/L on average for D-ENG and 12.97 km/L for B-ENG. The fuel efficiency of D-ENG was 22.66% higher than that of B-ENG. NOX had an average D-ENG of 191.75ppm and B-ENG of 104ppm. NOX of D-ENG occurred 145.76% more than B-ENG. The amount of CO2 generated was 154.25ppm for D-ENG and 199ppm for B-ENG. CO2 of D-ENG occurred 29.01% less than B-ENG. From this, it was found that the higher the fuel efficiency, the higher the emission of nitrogen oxide and the lower the emission of carbon dioxide decreased.