Wow. Just wow. I just did 300 miles round trip pulling 6300 pounds of rv (29ft bumper to tongue) through the mountains. I should preface this by saying I also installed a 5 star 87 octane performance/tow tune and ran 89 octane gas. This truck is a beast, once I got my hitch dialed in, it would hold 6th gear at 70 mph on the highway without downshifting. Transmission stayed at 203 but spiked to 208 for 30 seconds on a long steep climb in the back woods roads. I had power in spades to accelerate up hill if needed and the motor was silent. My 2010 5.4 F150 with max tow and similiar tune down shifted quite a bit on this same drive and in places would be in 2nd gear at high rpm. This little ecoboost never dropped below 4th gear, and I returned 10.5mpg (hand calculated) for the complete trip. I guess this makes me an ecoboost believer now. My truck still felt more stable in turns and on the highway but it had 20" LT tires. The family loved all the room to spread out in the expy and I continued to be amazed how well it performed. I'm now wishing for a max tow F150 with this motor!