What is your average MPG?

[Jon1985]

2010 Expedition EL limited 5.4L City I get around 12/13 Mpg & Highway I got it up to 23 Mpg its stock only thing I did when I got it two years ago is changed to 5W30 as a ford technician told me to avoid problems I only use full Synthetic extended performance oils . The previous owner had it always serviced at the ford dealership I’ve seen the Records what they done to it .

 

[haviland]

'17 Limited fwd 18k miles. Computer is at least a couple of mpg better than actual. Actual somewhere around 19 highway, 17 around town, 9 or 10 towing 9k boat.

 

[Sgt Darkness]

18 Expy Limited, 3.5TT, 3.73, 4x4, no mods. Highway on flat roads, 20.5 at 70 mpg while driving to Saint Simon, GA. Back home in TN 18.5 if I can keep my foot out of it. 14.5 if I drive like a scalded dog.

 

[nycnftm]

First gen Eddie Bauer. With Fuelly app
I’m averaging 10 mpg. When I want economy I park it and drive my Honda. :$

 

[Jenguggi]

Model : 2009 Expedition EL XLT

Engine : 5.4L 3V V8

Mileage : 177,000

Current average MPG : 16.1

Mods : None

Recent maintenance : Synthetic engine oil (5W30), new air filter, all new coil packs

To do : Spark plugs, transmission fluid & filter

My mileage is down from 18.3 a couple years ago, but up from the 14-15 range since changing out the coil packs. I've been running Mobil 1 pure synthetic 5W20 high mileage oil every 4000 miles since about the 150K mark. My daily drive is approx 40 miles highway and 10 city twice daily, if the kiddos have no ballgames to travel to.

 

[cmiles97]

2017 Expy EL 4x4 with 3.73 gear ratio. Seeing 19.5mpg over the last 5,000 miles via trip computer on 80%hwy driving at 75 or below mostly 93 but using 87 since the weather cooled off with no drop in mpg.

Towing a very wind resistant dual axle utility trailer I get 9 to 11 mpg at 65mph.

 

[Tom Aldridge]

2004 Eddie Bauer 5.4, 2WD, 52K miles
9-10 city, 17 hwy 14 avg

 

[MidwestBoater]

Model : 2016 Expedition XLT w/tow package

Engine : 3.5 Eco

Mileage : 95,*** miles

Current average MPG : 20.1, I get around 10mpg towing my tritoon.

Mods : SCT Tuner with 89 octane perf/tow tune from 5*

 

[2010ELExpy4x4]

2010 XLT EL 4x4

5.4L

130000+

AT 285 70 17 E tires

Superchips Flashpaq tuner

5w 30 full synthetic

Average 13.5-13.8 up to 14.2 long highway drives.

I did notice after changing to 5w 30 seems to stay more near 13.5, could be just me.

Wife drives it mostly, I tend to have a slightly heavier foot than she, just slightly though.

Am still trying to dial in the tire size difference, speedo still seems off compared to apps and on road speed indicators.

I typically drive a 1997 F-250 HD 4x4 that always gets 8 mpg so anything in the double digits makes me happy.

 

[762mm]

Thanks for your replies! I just got two maintenance items off my truck's bucket list: rebuilt the original alternator and changed the original platinum spark plugs to new Champion Iridiums. Thread here:

https://www.expeditionforum.com/threads/motorcraft-platinum-spark-plugs-after-132-000-miles.40938/

I will see if this makes a difference. So far, idle still remains where it was at: approx 500 RPM when the truck is stopped. I had to disconnect the battery for 3 days while the alternator was being rebuilt and so the onboard confuzer was totally reset. I'm curious to see what mileage it will display now...