Putc has it's 2 part ecoboost test drive results on it's site. 2 identical trucks, one empty and one towing a 9000 lb trailer, on a 2000 mile trek over nasty mountain passes.
Excellent towing and empty truck, but if you have that extra power and use it.... well fuel makes the power.

 

https://www.f150forum.com/f70/long-a...article-91145/

 

There's already a thread on it in this section posted yesterday morning and another thread about it in the 2011+ engines section

 

Found them after the fact.