If you’re driving a 2024 F-150 XLT with the 2.7 EcoBoost, you’ve probably asked the same question everyone does:
“What gas mileage should I actually be getting?”
Because let’s be real…
Ford’s official MPG numbers are one thing, but real-world MPG is what matters.
So I pulled together a bunch of real owner comments and MPG reports to give you a clear idea of what people are seeing with the 2.7 EcoBoost.
My MPG So Far (Baseline)
One 2024 XLT 2.7 owner shared:
✅ 3,500 miles driven
✅ Mostly highway
✅ About 70 mph cruising speed
➡️ 21.4 MPG average
That’s a strong number for a full-size truck, especially at highway speed.
Real-World MPG Reports From Other Owners
Here’s what other F-150 owners reported with similar setups.
MPG With Bigger Tires (34s) + FX4 + 3.73 Gears
One owner running a more aggressive setup said:
17 MPG with:
- 34” tires
- FX4 package
- 3.73 gears
- 50/50 city and highway
They also mentioned:
➡️ If they drive 70 mph on the highway, they’d see about 19 MPG
➡️ If it’s a mostly highway tank, they’d hit around 21 MPG
Big takeaway:
Bigger tires and gearing can easily drop MPG by a few points.
Stock Truck Highway MPG (24 MPG)
Another owner said:
- 20 MPG combined (city + highway)
- 24 MPG all highway
- Stock setup
- 21” wheels
- Lariat trim
That’s basically best-case scenario for a mostly highway truck.
2024 XLT 2.7 Around-Town MPG (19–20 MPG)
One 2024 XLT 2.7 SuperCrew 4WD owner reported:
- 1,500 miles
- Mostly around town driving
➡️ 19.6 MPG
Later update after an oil change + full synthetic:
➡️ 20.5 MPG average
➡️ Hit 20.9 MPG for the first time
Important note:
New trucks often improve slightly after break-in.
High MPG Commute Example (24–25 MPG)
A 2021 XLT SuperCrew 2.7 owner reported:
➡️ 24–25 MPG
Driving pattern:
- 85–90 mile commute daily
- About 70/30 highway/city
They also mentioned the truck is tuned, which can slightly affect MPG depending on driving style.
Simple Reports (Quick MPG Answers)
A few other owners chimed in with short MPG numbers:
✅ 21 MPG
✅ 21.7 MPG
✅ 18.4 MPG (50/50 highway/city) — 2024 4×4 XLT 2.7 owner said they’d “kill” for the higher MPG numbers others get
The Biggest MPG Secret: Speed Matters More Than You Think
One comment said something that’s 100% true:
Dropping from 80–85 mph to 70 mph is a HUGE MPG gain.
Even going from:
75 mph → 70 mph
can gain you 1–2 MPG
That’s a big deal over a full tank.
So… What MPG Should You Expect With a 2024 XLT 2.7?
Here’s the real-world range based on what owners are reporting:
Highway Driving (Mostly Highway)
21–24 MPG
(especially around 65–70 mph)
Mixed Driving (City + Highway)
18–21 MPG
(depending on traffic, tires, and driving style)
Bigger Tires / 4×4 / Heavy Setup
17–19 MPG
(34s, FX4, aggressive gearing, extra weight, etc.)
Why Your MPG Might Be Lower Than Someone Else’s
If your MPG isn’t matching what others get, don’t panic.
These things make a BIG difference:
Tire Size
Bigger tires = more rolling resistance = lower MPG
4WD vs 2WD
4WD adds weight and drivetrain drag
Wind + Weather
Cold weather and headwinds destroy MPG fast
Stop-and-Go Driving
City driving drops MPG more than most people expect
Fuel Quality
Some trucks do better with better fuel depending on driving habits
Driving Style
Hard acceleration and late braking = instant MPG loss
Final Thoughts (Is 21.4 MPG Good?)
Yes.
21.4 MPG at 70 mph in a 2024 F-150 XLT 2.7 is honestly a solid result.
You’re basically right in the “sweet spot” where most owners land.
If you want to push it higher, the easiest trick is:
✅ keep speed closer to 65–70 mph
✅ smooth acceleration
✅ avoid big tires if MPG matters most
