- Newest year: 2025
- Gas
- Small SUVs
2020-2025 Cadillac XT6 MPG & Fuel Cost
6 model years · 20–23 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 1 of 10 small SUV configurations, MY2025. Ranked against all rated configurations, not sales-weighted.
2020-2025 Cadillac XT6 at a glance
The 2020-2025 Cadillac XT6 covers 6 model years in the EPA database (22 configurations in all), rated 20–23 MPG combined. The newest model year, 2025, costs about $3,490 a year to fuel for its most efficient version, the XT6 2.0L 4-cyl turbo FWD (23 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2021, 2022, 2023, 2024 and 2025. The best combined rating in the generation, 23 MPG, was reached in 2021, 2022, 2023, 2024 and 2025.
2020-2025 Cadillac XT6 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2025 | Gas | 20–23 MPG | $3,070–$3,490 | Ratings changed |
| 2024 | Gas | 21–23 MPG | $3,070–$3,490 | Ratings changed |
| 2023 | Gas | 21–23 MPG | $3,080–$3,490 | Ratings changed |
| 2022 | Gas | 21–23 MPG | $3,080–$3,490 | Ratings changed |
| 2021 | Gas | 21–23 MPG | $3,070–$3,490 | Ratings changed |
| 2020 | Gas | 20 MPG | $3,210–$3,260 | First year |
What the 2025 XT6 2.0L 4-cyl turbo FWD costs to drive
Per month
$291
$3,490 a year ÷ 12
Per 25 miles
$5.82
Per 100 miles
$23.27
Five years
$17,450
5 × the yearly cost, prices held at today's level
vs the small SUV median
$1,100more a year
Class median $2,390 a year, MY2025
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2025 Cadillac XT6 MPG
Versus 2024: The most efficient configuration stays at 23 MPG. Its annual cost stays at $3,490.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| XT6 2.0L 4-cyl turbo FWD (Most efficient) | 2.0L 4-cyl turbo | FWD | 21 | 27 | 23 | $3,490 |
| XT6 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 26 | 23 | $3,490 |
| XT6 3.6L 6-cyl FWD | 3.6L 6-cyl | FWD | 19 | 26 | 21 | $3,070 |
| XT6 3.6L 6-cyl AWD | 3.6L 6-cyl | AWD | 18 | 25 | 20 | $3,190 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2024 Cadillac XT6 MPG
21–23 MPG · $3,070–$3,490/yr
Versus 2023: The most efficient configuration stays at 23 MPG. Its annual cost stays at $3,490.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| XT6 2.0L 4-cyl turbo FWD (Most efficient) | 2.0L 4-cyl turbo | FWD | 21 | 27 | 23 | $3,490 |
| XT6 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 26 | 23 | $3,490 |
| XT6 3.6L 6-cyl FWD | 3.6L 6-cyl | FWD | 19 | 26 | 21 | $3,070 |
| XT6 3.6L 6-cyl AWD | 3.6L 6-cyl | AWD | 18 | 25 | 21 | $3,180 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2023 Cadillac XT6 MPG
21–23 MPG · $3,080–$3,490/yr
Versus 2022: The most efficient configuration stays at 23 MPG. Its annual cost stays at $3,490.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| XT6 2.0L 4-cyl turbo FWD (Most efficient) | 2.0L 4-cyl turbo | FWD | 21 | 27 | 23 | $3,490 |
| XT6 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 26 | 23 | $3,490 |
| XT6 3.6L 6-cyl FWD | 3.6L 6-cyl | FWD | 19 | 26 | 21 | $3,080 |
| XT6 3.6L 6-cyl AWD | 3.6L 6-cyl | AWD | 18 | 25 | 21 | $3,180 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2022 Cadillac XT6 MPG
21–23 MPG · $3,080–$3,490/yr
Versus 2021: The most efficient configuration stays at 23 MPG. Its annual cost stays at $3,490.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| XT6 2.0L 4-cyl turbo FWD (Most efficient) | 2.0L 4-cyl turbo | FWD | 21 | 27 | 23 | $3,490 |
| XT6 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 26 | 23 | $3,490 |
| XT6 3.6L 6-cyl FWD | 3.6L 6-cyl | FWD | 19 | 26 | 21 | $3,080 |
| XT6 3.6L 6-cyl AWD | 3.6L 6-cyl | AWD | 18 | 25 | 21 | $3,180 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2021 Cadillac XT6 MPG
21–23 MPG · $3,070–$3,490/yr
Versus 2020: The most efficient configuration moves from 20 to 23 MPG, up 3. Its annual cost goes from $3,210 to $3,490, $280 more.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| XT6 2.0L 4-cyl turbo FWD (Most efficient) | 2.0L 4-cyl turbo | FWD | 21 | 27 | 23 | $3,490 |
| XT6 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 26 | 23 | $3,490 |
| XT6 3.6L 6-cyl FWD | 3.6L 6-cyl | FWD | 19 | 26 | 21 | $3,070 |
| XT6 3.6L 6-cyl AWD | 3.6L 6-cyl | AWD | 18 | 25 | 21 | $3,180 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2020 Cadillac XT6 MPG
20 MPG · $3,210–$3,260/yr
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| XT6 3.6L 6-cyl FWD (Most efficient) | 3.6L 6-cyl | FWD | 18 | 25 | 20 | $3,210 |
| XT6 3.6L 6-cyl AWD | 3.6L 6-cyl | AWD | 17 | 24 | 20 | $3,260 |
Fuel cost by state
Yearly cost of the XT6 2.0L 4-cyl turbo FWD: $4,170 in California and $3,030 in Texas, a $1,140 difference.
- California $4,170
- Washington $3,920
- New York $3,450
- Florida $3,190
- Texas $3,030
Similar cars
Closest combined MPG among MY2025 small SUV models.
Generations
- 2020-2025 (2020)
Frequently asked questions
What gas mileage does the 2020-2025 Cadillac XT6 get?
EPA rates the 2020-2025 Cadillac XT6 at 20–23 MPG combined across 22 configurations and 6 model years. The most efficient version, the 2025 XT6 2.0L 4-cyl turbo FWD, is rated 23 MPG (21 city, 27 highway).
Which years had the best MPG in the 2020-2025 Cadillac XT6?
The XT6 2.0L 4-cyl turbo FWD reached the generation's best combined rating, 23 MPG, in 2021, 2022, 2023, 2024 and 2025. The lowest top rating, 20 MPG, was in 2020.
Did EPA ratings change during the 2020-2025 Cadillac XT6?
Yes. Ratings changed in 2021, 2022, 2023, 2024 and 2025.
How much does it cost to fuel a 2025 Cadillac XT6 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the XT6 2.0L 4-cyl turbo FWD costs about $3,490 a year. Across all 4 configurations the cost runs $3,070–$3,490 a year. That is a $420 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2025 Cadillac XT6 100 miles?
About $23.27 per 100 miles for the XT6 2.0L 4-cyl turbo FWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $20.47 and $23.27 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2025 Cadillac XT6 more efficient in the city or on the highway?
The XT6 2.0L 4-cyl turbo FWD is rated 21 city and 27 highway MPG, so it is more efficient on the highway, by 6 MPG.
How does the 2025 Cadillac XT6 compare with other small SUV configurations?
The XT6 2.0L 4-cyl turbo FWD costs about $3,490 a year to fuel, $1,100 more than the class median of $2,390, and less than 1 of 10 small SUV configurations. The comparison covers all 327 rated small SUV configurations for MY2025, not weighted by sales.
Is the 2025 Cadillac XT6 different from the 2024 model?
The most efficient configuration stays at 23 MPG. Its annual cost stays at $3,490. EPA lists 4 configurations for 2025 against 4 configurations for 2024. See the 2024 Cadillac XT6 for that year.