You're going off of a 2.1 mile trip. I get 6.4mpg on a 2.1 mile trip. Youre probably getting 15mpg in town and 19 on the hwy. I can make mine say 40 mpg for a 4 mile trip if I start at the top of the mountain and coast down. It's all relative. Set your trip to zero next time you fill up then when you fill up the next time divide how many miles the trip says by how many gallons you put in. That will be accurate.I have a 2017 v6 off road long bed. I raised it 2.5 inches and have bigger tires. View attachment 12563View attachment 12564