If you’ve ever wondered about the return on investment (ROI) of a FASS Fuel System, this is the video series for you! In our ROI Video series, we’re discussing the science behind FASS, and how we’re able to save our customers (in many cases) thousands of dollars.

Please note: MPG improvements depend highly on the owner’s driving habits, record-keeping methods, fuel quality, and more. While observing increased fuel economy is extremely common after installing a FASS Fuel System, we cannot guarantee a measurable MPG improvement.
Have questions about a FASS Diesel Fuel System for your Duramax, Powerstroke, or Cummins-powered truck? Contact us today!
We’re proud to be a family-owned, U.S.-based manufacturer. From our production facility in Marthasville, Missouri, we serve diesel owners around the world.
