3.5 EB Real World MPG

[mla_anderson]

Generally get 15.4 MPG around town, that's improving as the weather warms up and I'm not warming it up.

I've done one long distance trip (started at 900 miles on the odometer, went 1K miles). Into a really strong head wide (about 30-40 mph with gusts up close to 60) I got 12mpg. On the way home the wind shifted to another head wind but only 10 mph I got 19 mpg at 82mph.

Update:
I now have 8,500 miles on it (3,600 in one trip). My total average is now at 19.1 MPG. I typically use the 87 octane E10.

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[jeffm4688]

I just drove to FL and back, bone stock 21 platinum with the 3.5 EB and my best tank I averaged 23.3. The worse mileage I got in FL was 14.5 on 5 gallons and I can assure you I deserved much less than that.

I'm very happy with the gas mileage, although I came from an X5M and before that a silverado 1500 where my best MPG was 17.2 and my GMC Sierra denali (lifted 6 in with 35s where avg was 15.9).

 

[flatag]

21 XLT 3.5 Eb around town I’ve averaged 15.1. Two highway trips; first spirited driving doing 80+ I got 19.3 Second trip doing speed limit i got 23 even. Towing a 2500 boat I get 13.3

 

[jeffm4688]

21 XLT 3.5 Eb around town I’ve averaged 15.1. Two highway trips; first spirited driving doing 80+ I got 19.3 Second trip doing speed limit i got 23 even. Towing a 2500 boat I get 13.3

thats pretty damn good towing, i'm going to be towing a car to FL in two weeks and am curious to see what I get MPG wise, I was hoping for 10.

 

[powerboatr]

i have just over 500 miles on her and mpg is at 16.7 this is mostly short runs of 20 miles at 70 plus and the rest intown 45 to 60 mph..maybe 1/2 mile of stop go traffic, i got caught in town about the time the school buses ran

 

[sysop]

 

[StoneGray22]

Details?

All highway at 60 mph?

I haven't been able to get anywhere near this yet. But basically all of my ~3600 miles have been in town.

 

[Kidder]

All city driving, I'm averaging - see Fuelly in signature. The truck isn't broken in yet. It's only got a touch over 2k miles. If I can average 17, I'll be happy. I have noticed it's hard not to mash the go pedal and feel those twin turbos kick in.

 

[sysop]

Details?

All highway at 60 mph?

I haven't been able to get anywhere near this yet. But basically all of my ~3600 miles have been in town.

Details: that's a couple days worth of my "daily driving". 198 miles divided by 4.5 hours equals 44MPH. That's a pretty balanced mix of rural, freeway, and in town driving in the mountains of WV. I noticed my overall average that I never reset was rapidly climbing up from the 19.xMPG I had been getting since getting the truck in December, so I recently reset the trip meter to use as a check of what I'm averaging now that it is warmer and remote start isn't as much of a necessity. That's the details of how that picture came to be.

My overall average MPG is currently showing 21.0MPG and that same trip odometer is now reading 21.9MPG. I'm now at about 11k miiles.

 

[Cincy150]

I've been getting about 19-19.5 in mine lately, but I've largely eliminated unnecessary idle and been using ECO mode pretty strictly. I would guess i'm about half and half city/hwy driving.. I average about 75mph on the highway.

 

[NotMyName]

I have a 2017 Platinum loaded FX4 3.5EB (First year of the 10 speed transmission) Went from stock tires to 1 size larger 275/60/20. Bakflip covering the bed. Currently for the life 66,XXX miles of the vehicle I’m at 19.7. This includes towing a side by side on occasions. Trip A has never been reset since I purchased new with 8 miles on the truck. Granted, this is the lie-o-meter readings, but understand that hand calculations are performed sporadically. Since upgrading the tires (nitto ridge grapplers - 4ply) and size the lie-o-meter went from 0.7-1 mpg difference to 0.3 mpg difference. Also to note is that my speedometer actually corrected itself (gps verified) to the correct speed. Before the 275/60/20 it showed half a mile faster than gps. A big mistake I’ve made in the past and learned from is going to a D or E rated tire kills MPG. At adds much more unsprung weight and resistance and kills the ride quality. I always use 93 octane. when I’ve used lower octane fuel the MPG goes down by about 1-1.5 mpg. Buying gas at Costco and doing the math, premium is no additional charge in the long run due to higher MPG and I have the extra HP and torque to boot As a result of the premium fuel. MPG goes down to around 19.5-20.5 in the winter. when the temp is over 60 degrees I can achieve 22-23 Mpg. This has been an outstanding truck from looks, to ride, to comfort, and to economy. It beats the hell out of our 2015 Escalade EXT 4x4 as far as ride and comfort are concerned which we traded for the new Bronco. I can’t wait for the 22 F150 Platinum Powerboost to finally show up……if it ever does; however, this is one vehicle I hope I don’t regret getting rid of.

 

[TonyWu]

I'm getting about 20-20.5 MPG in "Normal" driving mode, in my 22 3.5 EB FX4. I drive about 32 miles one way to work, 75% highway and 25% City, but yet then again I'm in stop and go traffic as well. I got a K&N drop in filter, RC level, and stock tires.

In "Eco" I gain about 1 MPG.

I use Costco Premuim fuel.

 

[JeffC57]

I just did a mileage test with my '21 Lariat 3.5 EB. It has over 6k miles so broken in. It was about 400 miles with 50% interstate, 40% divided highway or 2 lane and 10% city. I stayed within 5 mph of the speed limit (70 interstate and 60/65 hwy). I was in Eco mode most of the time. I checked MPG the old fashioned way using a calculator and got 20.4 MPG. The trip odometer was reset about 100 miles before the test and showed the same MPG results.

 

[speedracercjr]

Got this on my trip from Houston to Dallas, set cruise on 77 in Eco mode

 

[FrogRacer]

Got this on my trip from Houston to Dallas, set cruise on 77 in Eco mode

Was the wind from the S/SE when you drove to D?

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