I had this discussion at work about fuel mileage numbers at work. A co-worker was telling me that his 2019 Ram with 5.7 hemi was consistently getting 23-24 mpg according to the dash computer. Prior to the 2019 Ranger and the 2017 GMC Canyon, I had a 2014 Chevrolet silverado (5.3) and a 2011 Ford 150 (3.5 ecoboost) all quad cabs, and about 18 mpg was the consistent 13 mile commute (70 mph on the four lane) to work with some city driving tossed in. Now these are numbers based upon actual numbers between filling up at the station because the dash computer seemed to show better numbers.
My co-worker had a just over a 200 mile trip (all freeway) planned so challenged him with a friendly wager to use actual numbers and rely on the computer. He ran the trip mostly in the 70-75 mph speed and came up with just over 19 mpg when filled up. I won a 20 oz. diet coke.
I'm not getting the results you folks are. I am going to do another test next weekend on the trip to Wisconsin, this time with no trailer. I am going to compare the dash computer to the actual fill up numbers and report. If the numbers are anything above 20 mpg I will stand at the top of mountain and praise the Ford Motor Company.