F150 Ecoboost Reliability

Mike Up wrote:

FishOnOne wrote:
Here's a video of a fuel economy test for a 3.5 Eco Boost.

Link

Here's a 2.7 Eco Boost making almost 24 mpg.

Link

I've seen up to 25 mpg on my 2012 5.0L also. It's just how and when you want to look at the mileage. Also were these 3.15, 3.31, 3.55, or 3.73 ratios. The '15s and '16s tend to have the tallest grocery getting gears of 3.31 in the 4WD Crew Cabs with either 5.0L or 3.5L ecoboost. I've had the 3.73 gears in my 5.0s and have been really happy with mileage. Also going to a heavier LT tire with more rolling resistance will also subtract 1 to 1.5 mpg .

AT the F150 forums, the Ecoboost 3.5L has been consistantly 1 mpg lower than a similar 5.0L and even worse while towing. The excuse is that anyone driving normal gets into the turbos with such a small displacement engine. To get the mpg up, you have to feather the throttle and stay out of the turbos. For me, that makes no difference. 1 mpg is nothing, power, driveability, reliability, and towing capability matter the most.

That being said, I've read about so many problems with the Ecodiesel, I was very surprised. I'd never consider a 1500 Ram because of their very low payload and the Ecodiesel's ~800 lbs payload makes it less capable at carrying a load than my wifes old Ford Escape. I thought about the 2500 Ram Hemi 5.7l and 6.4Ls before buying my '16 F150, but mpg were to low on both of them for my work commute.

I don't know the gears in the 3.5 EB but I recall the guy driving ~400 miles when advertising his fuel economy claim which I feel was good enough.

If I were buying a new half ton I would probably wait to take a hard look at Fords new gen 3.5 EB and 10 speed auto coming out for '17 model, but yes the 5.0 is a very respectable engine as well and deserves a hard look. But coming from a diesel having a turbo boosted gas engine appeals to me.