Towing MPG

Atlee wrote:
If you don't own a 3.5L Ecoboost, how do you know that engine is worked to death, and it's insanity to try to do so?

I also have a F150 HDPP and 3.5 Ecoboost. This past summer, we traveled from Virginia to New Mexico, Colorado, Utah, Idaho, Wyoming, Montana, and South Dakota before coming back home.

We were in the Rockies a lot. At no time was my 3.5L Eco every over worked going up the steep grades. And when I had to slow way down until a slower vehicle got out of my way while going up a steep grade, I had zero problem getting from the low speed back up to the speed limit. And no, the engine was not screaming while doing so. Usually, 3500 rpm was all I needed to get back to speed.

The only problem was going down steep grades. I really had to manually down shift sometimes to 2nd gear to keep my speed down and not have to use too much braking.

Now, I would not begin to tow 10k GVWR trailers with my 3.5L F150.
My trailer is 6500# GVWR and it worked fantastic behind my F150 3.5L Eco w/ HDPP.

Ditto on all this! The F-150 in my sig. duplicates the above description. In 14,500 miles to all 3 coasts, including MANY mountains, the average MPG was 11.5 with the old Jayco 5th. It is now 8 mpg with the Grand Design pull-behind over 4,000 additional miles. I blame it on the aerodynamics.
If buying new - it is a must to get the HDPP. They then out match most f-250's.