AFT Applied Fuel Technlogy Fuel Saving Device

My wife and I own a 2000 Model H3-45 Prevost bus that was converted into a motor home by Marathon Coach in Coburg, OR..  The H3-45 is the largest motor home on the road, it weighs 55,000 lbs., and is 45ft. long, not counting the tow car.  It is powered by a Series 60, 500HP Detroit diesel engine.  Over the last 8 years we have driven all over the U.S. and Canada, up hills and down hills, good weather and bad, the one constant was 5.8MPG.  One day while eating lunch at my favorite sports bar, I mentioned to a friend that Barb and I were leaving in a couple of weeks for West Glacier, Montana.  Mike proceeded to tell me about something that might increase the miles per gallon we got in our bus by 10% or better.  He gave me the name and phone number of a person in Orem UT. that was marketing what he called the AFT unit.  I contacted Rob Whitaker in Orem and made arrangements to have the AFT unit installed in our bus. 

On the 13th of August we left Phoenix, AZ. for West Glacier.  We fueled up in Kingman, AZ. and drove 566 miles to Orem.  We refueled in Orem, where we put in 98.119 gallons of fuel.  This figured out to be 5.76MPG.  After having the AFT 20 unit installed we continued North.  We drove to West Glacier, MT., stayed 12 days and then headed home.  Our next fuel stop was on the way home, Butte, MT..  We had traveled 901 miles since we last fueled up in Orem.  We put in 143.163 gallons of fuel. This figured out to be 6.294MPG, or an increase of 8.5%.  Our next fuel stop was Brigham City UT., where we topped off with 53.000 gallons.  We had traveled 355.7 miles, this worked out to an average of 6.711MPG, or an increase in mileage of 15.7%.  Our last stop for fuel was where we had 1st fueled when we started our trip, Kingman AZ..  We had driven 595 miles from Brigham City.  I put in 88.053 gallons of fuel, which figured out to be 6.757MPG or an increase of 16.5%.  In all we traveled 1851.7 miles after having the AFT unit installed.  That means we averaged 6.515MPG with an increase of 12.3%.  One of the most interesting things about this is that on the last leg of our journey from Brigham City to Kingman, we drove into 30MPH headwinds, and yet we still had the largest improvement in mileage.  When they installed the AFT unit they said at first it would actually clean the motor, and that the further we drove the better the performance would get.  I would have to say they knew what they were talking about.  Keeping that in mind, we’re looking forward to our next 1000 mile trip next month, I think we could make 20%..  One last thing, from what I understand, the AFT unit also works on gasoline engines as well.  Think I’ll get one put on our tow car, a Volkswagen.

Phil and Barb Hawkins

Mesa, Arizona