Part 1 - Part 2 -

 

2017 Lariat FX4 502A SCREW, 5.0 V8, 3.55 rear end.
New to me a couple of months ago at 30,000m.
Two tanks so far, both have returned just under 23mpg calculated, with the LOM reporting just under 24...
Mixed terrain up here in Western Maine, vast majority in 2WD.
Getting better mileage than our 2013 Edge SLE, and I drive both the same way/places...

 

UPDATE - Ok, I just spent the last few days in a rental 2020 platinum super crew EB F-150. The truck was averaging 19+ mpg, with 22-24 mpg possible under optimum driving conditions. Relieved to see this is possible like you mentioned. I’m sure newer motor technologies, 10 speed tranny, flat ground, and the loud freeway friendly tires all contribute to the great fuel economy.

I live in a fairly rural area also, but do contend with a minor hill here & there, lights, turns, etc. But I’m still perplexed that I get a consistent 12-13 mpg no matter what with 10ply 285/60/20’s and a pedal friendly foot😊. Does this sound normal to you all? Makes me think I need to have a tune, or check of sorts done, to make sure my motor is running as efficiently as possible?

Original post - That’s the best mileage that I’ve ever heard of from a F-150. Doesn’t seem possible actually as that’s what my 3 F-150s got while driving down hill. Averaged 14.8mpg with my 2012 5.0, 16+mpg with my 2015 EB3.5, and now 12mpg with my 2015 lariat EB3.5 after having recently added 285/65/20’s.


QUOTE=gjpritchett;6584232]2017 Lariat FX4
New to me a couple of months ago at 30,000m.
Two tanks so far, both have returned just under 23mpg calculated, with the LOM reporting just under 24...
Mixed terrain up here in Western Maine, vast majority in 2WD.
Getting better mileage than our 2013 Edge SLE, and I drive both the same way/places...[/QUOTE]

 

I assure you it's legit. I expect two things contribute highly to my results: we're rural around here so, no stop-and-start for traffic (and no signals for miles) and I'm frugal when starting from a stop. Not "old lady" frugal but, when I learned to drive (1970) I was told "imagine there's a pint of beer on the bonnet (hood; I'm English by birth) - don't spill it..." Even so, I was very (happily) surprised with the results... my first *real* truck (at the ripe old age of 65) and I was fearing the worst of what I'd read in this thread. Not enough to not get the v8 though, as I intend to put a plow on this for my driveway and wanted the factory plow prep option.

 

I saw 30 mpg over a 20+ mile trip and 24.2 for the entire trip. I have to search my cloud pics for the Fill picture but here are a couple taken during the trip.

 

I lost 2.5 mpg going from a 6 ply 275/55/20 Dynapro to a 10 ply Cooper XLT 285/60/20 on stock rims. Love the look, feel and quietness of these tires, but costs me some fuel mileage. Feels like I’m driving a more of a truck now.

 

Yep, heavier tires with more rolling resistance usually does that. That is why stock tires are they way they are, to get the best MPG at the cost of traction, and wear.

 

Smart kid -

 

Was interested to see what kind of fuel economy my 2.7 would get out of my most recent tank, it was 87 octane and almost no highway driving, and a lot of the in-town driving was in sport mode. Just filled it up and I was pleasantly surprised, 19 flat on the lie-o-meter and 18.6 on the hand Calc.

 

I think I have a different spin on stock tires. I would guess if anything manufacturers would prefer quiet and easy ride over mileage. Most folks pay little attention to MPG but complain about noise levels and ride. I agree with others that when installing larger tires the MPG suffers. On my 16 going from the small stock 17's to 18" takeoffs I lost a consistent mile per gallon. The so called "Lie O Meter" is dead on as I tweaked it right after I bought the truck. It hits the miles within ten on every tank fill. Just returned from a 2500 mile trip getting 20.8 MPG overall driving a consistent 79 MPH. (Traffic speed these days!) Usually get a little better in town. (For whatever reason) 3.5 flexfuel. (No turbo!)