This is our gas mileage converter. By reducing the amount of slippage in our Fuel Miser converter by 25-30% we can effectively increase gas mileage by 2-4 miles per gallon, with a closer 1 to 1 lock-up.. Your transmission will run cooler with less friction, reducing heat build-up. Actual mileage gains may vary according to your type of driving and installation. Recommended for 400 cubic inch and larger gas engines as well as all diesel applications.

Product Reviews for HTGM4FUEL - HUGHES