Actually you can set the shift points to de-fuel 100%,50%, or not at all. You can also pick which gears (1st to 2nd,3rd to 4th,etc) to de-fuel. When you have these set, every time you go to that particular power setting (1-mileage,2-Tow,3-Driving,4-Racing,5-Extreme) the Edge will remember these...