Just bought the truck last Monday. I've commuted to work and back (Fredericksburg, VA to Arlington, VA), about 49 miles each way, 3 days this week. The route is slightly hilly, on a slightly downhill slant towards the Occoquan River, then uphill for a few miles before beginning a slow descent toward the Potomac River. Home is about 175 feet above sea level, whereas my job is situated at about 10 feet. Speeds between 65-70 most of the way. Not driving aggressively at all.
With all that said, my first day I finished at 24.1 mpg. Second day - 25.3 mpg. And the 3rd - 26.1!
Yeah, I'm skeptical too. This was using the EVIC. I'll know more when I fill up, drive it, and fill up again and do a manual calculation. But can you imagine if it's true?
BTW, on the way home I didn't reset the AVG MPG meter and by the time I had climbed to my 175 feet, the reading was between 22 and 23 mpg. Still pretty good for a truck this size. We'll see what the manual calculations say next week.