Hypertech Fuel Economy MPG Tuner Now you can increase your fuel economy on the fly with our Hypertech Fuel Economy & MPS Power Tuner. By optimizing the fuel and air mixture, commonly know as Air Fuel Ratio, we can successfully save fuel by making sure non is wasted. Automobiles tend to run the cars on the rich side, meaning their is unnecessary fuel present to safeguard. This safeguard is nothing more than a band aid on a problem that does not exist. By actively monitoring and controlling the air fuel ratio, ignition maps and timing of the vehicle, we can easily optimize your instant mile per gallon, overall fuel economy and the distance a tank full takes you.