The 115 e-tec can be programed to run different 2cycle oils. I had my dealer set mine to run the Evinrude syethic 100 oil. It is a little more expensive, but during Jan to March check with Evinrude delers to see if they sell in bulk. One dealer has bring your own jug and bulk for 19.99 a gallon vs a gallon prepack jug at 42.95. Just a heads up tip. You will love the ease and dependability of the E-TEC.