Cadillac XT6 AWD
21.5 MPG The 2025 Cadillac XT6 AWD is EPA-rated at 21.5 MPG combined (19.5 city / 25.5 highway). Over 15,000 miles a year that is about 698 gallons, $2233 a year in fuel, or $0.149 per mile at $3.20/gal.
Across its full 2020–2025 run it averages 21.6 MPG, improving by 1.5 MPG over 6 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.116 | $1163 | $1744 | $2326 |
| $3.00/gal | $0.140 | $1395 | $2093 | $2791 |
| $3.20/gal | $0.149 | $1488 | $2233 | $2977 |
| $3.50/gal | $0.163 | $1628 | $2442 | $3256 |
| $4.00/gal | $0.186 | $1860 | $2791 | $3721 |
| $4.50/gal | $0.209 | $2093 | $3140 | $4186 |
| $5.00/gal | $0.233 | $2326 | $3488 | $4651 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2025 | 21.5 MPG | 19.5 | 25.5 | $3225 | 411 | 2 |
| 2024 | 22 MPG | 19.5 | 25.5 | $3150 | 410 | 2 |
| 2023 | 22 MPG | 19.5 | 25.5 | $3150 | 410 | 2 |
| 2022 | 22 MPG | 19.5 | 25.5 | $3150 | 410 | 2 |
| 2021 | 22 MPG | 19.5 | 25.5 | $3150 | 410 | 2 |
| 2020 | 20 MPG | 17 | 24 | $3100 | 446 | 1 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 130 small sport utility vehicle 4wd models tracked here, the Cadillac XT6 AWD ranks 104 on current figures, against a class average of 29.3 MPG.
Closest more-efficient alternatives in the same class: Cadillac XT5 AWD (22), Jeep Cherokee 4WD Active Drive II (22), Jeep Cherokee Trailhawk 4WD (22), Land Rover Range Rover Evoque (22), Land Rover Range Rover Velar P340 MHEV (22).
Tailpipe CO₂ is rated at 411 grams per mile, which works out to roughly 6.2 tonnes a year at 15,000 miles.
Questions
What MPG does the Cadillac XT6 AWD get?
The 2025 Cadillac XT6 AWD is rated at 21.5 MPG combined by the EPA — 19.5 city and 25.5 highway. Across all 6 model years in the database it averages 21.6 MPG, ranging from 20 to 23 depending on year and trim.
How much does a Cadillac XT6 AWD cost in fuel per year?
At 21.5 MPG and 15,000 miles a year, it burns about 698 gallons — roughly $2233 a year with fuel at $3.20 a gallon, or $0.149 per mile. The EPA's own published annual figure for the 2025 model is $3225.
Has the Cadillac XT6 AWD become more efficient over time?
Yes. It has gone from 20 MPG in 2020 to 21.5 in 2025 — an improvement of 1.5 MPG, or 8% across 6 model years.
Is the Cadillac XT6 AWD efficient for its class?
It ranks 104 of 130 in the Small Sport Utility Vehicle 4WD class on current figures, against a class average of 29.3 MPG. That is 7.8 worse than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.