Cadillac XT6 FWD
22 MPG The 2025 Cadillac XT6 FWD is EPA-rated at 22 MPG combined (20 city / 26.5 highway). Over 15,000 miles a year that is about 682 gallons, $2182 a year in fuel, or $0.145 per mile at $3.20/gal.
Across its full 2020–2025 run it averages 21.7 MPG, improving by 2 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 | $0.114 | $1136 | $1705 | $2273 |
| $3.00/gal | $0.136 | $1364 | $2045 | $2727 |
| $3.20/gal | $0.145 | $1455 | $2182 | $2909 |
| $3.50/gal | $0.159 | $1591 | $2386 | $3182 |
| $4.00/gal | $0.182 | $1818 | $2727 | $3636 |
| $4.50/gal | $0.205 | $2045 | $3068 | $4091 |
| $5.00/gal | $0.227 | $2273 | $3409 | $4545 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2025 | 22 MPG | 20 | 26.5 | $3150 | 402 | 2 |
| 2024 | 22 MPG | 20 | 26.5 | $3150 | 402 | 2 |
| 2023 | 22 MPG | 20 | 26.5 | $3150 | 403 | 2 |
| 2022 | 22 MPG | 20 | 26.5 | $3150 | 403 | 2 |
| 2021 | 22 MPG | 20 | 26.5 | $3150 | 402 | 2 |
| 2020 | 20 MPG | 18 | 25 | $3100 | 437 | 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 74 small sport utility vehicle 2wd models tracked here, the Cadillac XT6 FWD ranks 68 on current figures, against a class average of 34.8 MPG.
Closest more-efficient alternatives in the same class: Cadillac XT5 FWD (22.5), Acura RDX 2WD (23), Lincoln MKC FWD (23), Lincoln Nautilus FWD (23), Volkswagen Atlas Cross Sport (23).
Tailpipe CO₂ is rated at 402 grams per mile, which works out to roughly 6.0 tonnes a year at 15,000 miles.
Questions
What MPG does the Cadillac XT6 FWD get?
The 2025 Cadillac XT6 FWD is rated at 22 MPG combined by the EPA — 20 city and 26.5 highway. Across all 6 model years in the database it averages 21.7 MPG, ranging from 20 to 23 depending on year and trim.
How much does a Cadillac XT6 FWD cost in fuel per year?
At 22 MPG and 15,000 miles a year, it burns about 682 gallons — roughly $2182 a year with fuel at $3.20 a gallon, or $0.145 per mile. The EPA's own published annual figure for the 2025 model is $3150.
Has the Cadillac XT6 FWD become more efficient over time?
Yes. It has gone from 20 MPG in 2020 to 22 in 2025 — an improvement of 2 MPG, or 10% across 6 model years.
Is the Cadillac XT6 FWD efficient for its class?
It ranks 68 of 74 in the Small Sport Utility Vehicle 2WD class on current figures, against a class average of 34.8 MPG. That is 12.8 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.