calicamper
Expedition Leader
Just did a 190 mile out and back all highway set the cruise at 71mph. Trip average on the 3.5 2019 Heavy tow 3.73 Expedition was just a 10th under 23mpg. Thats with stock sized 285’s on stock 22’s 3 peak rated BFG Trail Terrain tire. I lost about 1mpg at the higher highway speeds going from the Yokohama oem highway tire to the far better Trail Terrain hybrid a/t tire.My friend who has a 5.9 Cummins pre-emissions '05 with a Goerend trans and Smarty turned up drove a new F-150 2.7 this week and said it would smoke his Ram. He backed off on the gas on the freeway and the mpg readout said 25 mpg. I know that's overly generous but it hauled ass with the 10 speed transmission.
Same trip in my old Sequoia would have been 15mpg average.