Gas mileage question

[adefend]

I’ve been getting combined 18.5 on my 2.7 in normal mode.

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[TheKim]

'21 4DR SAS(+) BL.
15-17mpg daily driving, long stretches of 50mph, lots of hills in the daily drive. 9-10mpg towing a loaded trailer around the Utah mountains.

To save money on fuel, work on hobbies and projects at home once in a while.

 

[Fastmc25]

4D 2.3 on 33” tires. Average 20.5 mpg

I live in the mountains and drive highway and country roads. Going up a long mountain roads mpg drops. Coasting down not much gas used.

Hard to compare with someone living in Kanas driving a flat highway and roads. The numbers will be all over the place.

I was cruising at 26 mpg driving across Nebraska with a tail wind for hours last week. Everyone will have different numbers depending on how or where they are driving.

That trip ended up averaging 19.4 mpg on 4700 miles

Lots of threads here about this.

 

[buddahboy357]

How many miles per gallon are people typically getting? I didn’t buy it for its fuel efficiency but I see people posting anywhere from 20-30 MPG. I’ve had the Bronco since April 8th. I haven’t gotten anywhere near 20. The best was 16.8. I’ve tried normal and eco mode on different tanks of gas. I don’t drive it hard ever. Rarely any quick accelerations. Mostly drive it around town and not many highway miles. Just curious if it starts to get better gas mileage after driving it for a longer period of time.

25 2.3 factory tires . highway 26.1 daily driveing 23.3

 

[Umichigan1]

How many miles per gallon are people typically getting? I didn’t buy it for its fuel efficiency but I see people posting anywhere from 20-30 MPG. I’ve had the Bronco since April 8th. I haven’t gotten anywhere near 20. The best was 16.8. I’ve tried normal and eco mode on different tanks of gas. I don’t drive it hard ever. Rarely any quick accelerations. Mostly drive it around town and not many highway miles. Just curious if it starts to get better gas mileage after driving it for a longer period of time.

I used to get 18mpg (when new - 2022 2-door). Since then I switched to 35" tires ( on std. wheels - if that matters). I also added a cargo box to the roof. Now I get anywhere from 14 to 17 mpg. It moves towards 14 when I'm on the highway (most commonly between 65 and 75 mph). As you hit the higher speeds the turbo kicks in pretty much constantly (probably the most obvious disadvantage to the 2.3L) and it just sucks the gas.
I don’t get too upset about it because the Bronco pays me back everyday just being itself.

 

[Quatermain]

Yesterday I did a 300 mile road trip in west central Idaho, including some city traffic in Boise. I dropped and gained about 3000 feet in elevation. Highway speed limits varied from 55 to 80. My 4 door 2.7 Badlands surprised me with 24.1 MPG combined. That is slightly better than my 2013 3.5 Eco boost Explorer used to do for the same trip..

 

[jrollo7]

How many miles per gallon are people typically getting? I didn’t buy it for its fuel efficiency but I see people posting anywhere from 20-30 MPG. I’ve had the Bronco since April 8th. I haven’t gotten anywhere near 20. The best was 16.8. I’ve tried normal and eco mode on different tanks of gas. I don’t drive it hard ever. Rarely any quick accelerations. Mostly drive it around town and not many highway miles. Just curious if it starts to get better gas mileage after driving it for a longer period of time.

20.2mpg in a 2.7L automatic 2024 Heritage 2 door.

 

[SHANUT]

How many miles per gallon are people typically getting? I didn’t buy it for its fuel efficiency but I see people posting anywhere from 20-30 MPG. I’ve had the Bronco since April 8th. I haven’t gotten anywhere near 20. The best was 16.8. I’ve tried normal and eco mode on different tanks of gas. I don’t drive it hard ever. Rarely any quick accelerations. Mostly drive it around town and not many highway miles. Just curious if it starts to get better gas mileage after driving it for a longer period of time.

A little over 19 with the 2.7 in my 23 two door and a little over 21 with the 2.3 in my 25 two-door. That’s the average shown on the lie o meter but that give you a rough idea.

 

[mshipley71]

‘26 Heritage 2.7L (SAS 35”) I average 18.1 combined in normal mode and 19.9 in Eco.
33 miles each way to work, with the last 12 miles on the highway at 80mph, which definitely drops the gas mileage

 

[Bronco21Maybe]

I've wondered about the accuracy of the fuel efficiency guage in my 2 door 7 speed. But, for highway miles, it's reasonably accurate. I make a 262-mile trip twice a week and I fill up when I leave and arrive with about a quarter of a tank left. So it's in the 19-20mpg range. But, I pretty much drive the speed limit and just enjoy the trip.

 

[RadDad]

2025 Heritage 2.3L 7MT with procal tune installed running 93.

I usually get 19 mpg with mixed around town some highway driving.

21.5MPG on a recent 400 mile trip highway miles mostly.

I only use sport mode when on road. Procal improved mpg and I used 93 beforehand anyways.

I have some added weight- steel fuel tank skid, front winch mounted on capable bumper, compressor and mount, so not factory weight but not crazy weight either

 

[Idahome98]

We average 22-24 around town based on which one of us is driving our BB 2.3 non Sas. Usually when we’re traveling the Interstate out west here mpg goes down some because it’s a brick traveling with bad winds on the open road. However, we’re currently on a trip to the Grand Canyon and we’ve been getting 22-26 doing the speed limit on the open roads. Even had front roof panels out some. I’m sure that creates an additional drag. As for the mpg computer my take on it is it doesn’t have to be exact. I’d rather it be consistant and I’ll live with it not be totally accurate.

 

[BroncoChallenger]

How many miles per gallon are people typically getting? I didn’t buy it for its fuel efficiency but I see people posting anywhere from 20-30 MPG. I’ve had the Bronco since April 8th. I haven’t gotten anywhere near 20. The best was 16.8. I’ve tried normal and eco mode on different tanks of gas. I don’t drive it hard ever. Rarely any quick accelerations. Mostly drive it around town and not many highway miles. Just curious if it starts to get better gas mileage after driving it for a longer period of time.

While I agree that there's already a couple threads on this that could be found with a search, I'll chime in anyway.

There's a LOT of factors that go into what you're going to see as mileage. Your configuration is going to matter - a 4-door Sasquatch should, in the same driving situation, get worse mileage than a 2-door non-Sasquatch. A V6 should get slightly worse mileage than a 4-banger. City/town driving with lots of starts and stops will get worse mileage than being out on a rural highway running 55-65 mph. Over 65 you've got the aerodynamics of a cinder block, your mileage is going to plummet.

Ours is a 2dr V6 Sasquatch. Most of our driving is rural highways marked at 55mph. Summer average is about 20.5, winter average is about 19.5. Expressway at 70ish it gets around 17. City/town driving...well it's abysmal, probably around the 15-16 mark.

 

[Bronco21Maybe]

Funny, but my 2 door base and my wife's 4 door SAS get about the same, give or take 1mpg.

 

[CalvinT]

I do not know what I'm doing wrong/right but mine says I get 21 mpg average.
4D, 2.7, Black Diamond.
I should do the actual volume/miles calculation to see if the vehicle is calculating it correctly.

It isn't calculationg correctly. None do straight from the factory. This entry by BeachBum tells how to calibrate your computer. There's an Actual Fuel Economy (AFE) bias setting in the computer. You have to go into engineering test mode to change it. The factory default is 1000. I had to change mine to 934.

#29

BTW, engineering test mode is interesting to poke around in. You'll actually see the computer counting injector pulses on one screen.

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