Restaurants and food processors that frequently utilize frying oils can provide waste vegetable oil for free or for a small price. To compare the use of OAME to fossil diesel on the performance of the 67 kW KUBOTA tractor diesel engine, the methyl ester of oleic acid methyl ester (OAME) biodiesel was created from used vegetable oil using the transesterification process. The OAME gasoline was used straight up. The engine's performance parameters and key indications, such as the indicated torque, brake torque, indicated power, fuel consumption of the braking force brake (BSFC), and exhaust gas emissions, were determined. The choice of a certain biofuel made from a specific source is primarily based on its economic viability and availability where it is utilized.