Nighthawk87

3.55 is if I get 4x4 but with a locking rear diff and living in SoCal I don't think I need 4x4. I'll be towing that 7000 pounds up and down mountains about 4000-6000'. We like to go to big bear, arrowhead, sequoia. Avid forest campers.

crew man

It is possible to get decent mileage under the right conditions
This was for approx. 20 miles, fairly level ground, 68mph, cruise on
Works out to just over 24mpg

Carmmond

Ask the question in the towing forums.... make sure you have the payload to do what you want or may do in the time you own the truck. It sounds like with trailer, people, cargo you may want/need the payload package with the 2.7L. Not saying you cant get by without it just don't want you wishing you did down the road

Mikemeek

My 2.7 w/3.73 4wd SCREW has averaged 18 mpg by hand calculation over 1,500 miles. The computer says 19.1. That's 70% city driving and sitting at a lot of lights. I can get 22 on the highway at about 70-75, but that's according to the computer. It's frustrating that the computer is that far off. It's alike they are flat out lying to you to win the mpg wars.

I traded a 2014 5.0 w/3.31 2wd that yielded 15.4 mpg over a 5,000 period over the same routes. I had a few tanks in the 13 mpg range. It could get about 19 on road trips.

My assessment: the 2.7 gets moving much easier with less drama and rarely downshifts compared to the 5.0. I know some of that is gearing, but I also had a 2013 4wd w/3.55 and it was a little better, but still downshifted a lot. I do miss the v-8 sound.

Carmmond

My computer shows 20.9mpg lifetime and hand is 20.5mpg but no way is my city driving like yours in Atlanta... I'm in a suburb of Milwaukee in WI way less lights and way shorter. I know for testing they use a 150lb person and real gas without Ethanol.... from what I remember reading.

Nighthawk87

What would be my payload with a lariat 501 no sunroof and 18s WITHOUT payload package and 3.31s? Any guesses. Not sure if the payload package is really worth the drop in mpgs...

Carmmond

Like I said the guys in the towing forum know enough to hurt your head
This is one post on the subject but I would talk with them for your answer. It's in the manual but I don't have it on hand now.
https://www.f150forum.com/f118/2-7l-...yloads-311707/

2.7Ecoboost

I started this thread should help. I got no responses in the towing section of the forum.

https://www.f150forum.com/f118/towin...oboost-314314/

Nighthawk87

Thanks guys. It basically seems that payload is inversely proportional to mpgs. Less payload better mpgs, due to the forced gearing of 3.73.

Nighthawk87

Interested to hear anymore feedback