Snowwolfe

We use this to tow the boat, take trash to the dump, pick up animal feed, etc. It is 4x4 XLT with the 3.5 ecoboost and 10 speed. This thing is a beast for a full size truck. Way quicker than the 2013 Tundra 5.7 V8 that it replaced with 5 more mpg. It now has just over 1,000 miles on it and the mileage is consistently in the high 22 to 23.3 mpg. Even the wife commented that it is the most comfortable truck we ever owned (since 1979).
Picked the 3.5 eco over the V8 because all the torque comes on at 2500 rpms which is great for towing.

IMXCITD

JJS04

Great choice! I have a 2012 Eco with the tow package. That engine is incredible when it comes to towing and acceleration.

White Out

Congrats! I really like the new F150.

FAUEE

The ecoboost is a good motor. Downside is it uses way more fuel than the v8 when towing, and the repair costs are higher. Plus they sound bad. But they drive great around town, are surprisingly quick, and great great fuel economy when not being pushed.

I loved my 15 platimum, but it was just too big. They need something 75% the size of the f150, they're super duty sized now.

Snowwolfe

We purchased a 2017 Expedition with the 3.5 eco in June. When towing our boat it averaged low 13's. With the 5.7 Tundra it averaged 12-12.2 with the same boat.
The eco in the F150 has more torque than the motor in the Exp so it will be interesting to see how the towing mileage compares. I will gladly put up with the same as the Tundra towing to gain 5 mpg when not