All Maytag engines are two cycle engines. They use 16:1 fuel to oil mix. That is 8oz of oil per gallon of gas. We sell a premium oil for using in these early two cycle engines. Otherwise a good grade two cycle oil or a 30 weight non detergent motor oil will also do. Mix the gas prior to filling. The gas goes in the base of the engine on every model. Look for a small pipe plug on all model except the twin. They have a larger aluminum gas cap toward the rear of the engine.