Return of Investment

There are many significant advantages (listed above) for buying the ‘DFX'. Naturally, results will vary due to many variables such as but not limited to: weather & road conditions, driving habits, traffic load and type of fuel (yes this makes a difference) and miles driven. We highly recommend doing a baseline test before purchasing/installing our unit. We recommend not using any computerized on board computer; take miles driven (on at least ¾ tank) and divide by gallons used. With the DFX, you will experience a significant savings: up to 25% making this unit pay for itself in as little as a month or less, again depending on the miles driven.