In research has led to the installation of the engine to the car body and then connected to a Chassis dyno is then filled with a combination of fuel oil between the gas with ethanol Lee solo. By having a different ratio is to be filled with ethanol to gas in Seoul as lean ratio of 10%, 20%, 30%, 50%, 70%, 85% and made measurements that are coming out, including pollution of the color to be elevated, and then analyzing them.