Cadillac · Small SUVs · Gasoline
Cadillac XT6: MPG and annual fuel cost, 2025
The Cadillac XT6 was last rated in the data for model year 2025, at 23 MPG combined, tied for 18th of 20 small SUVs, in the bottom quarter.
- 23MPG combinedtied 18th of 20 in class
- $3,550a year in fueltied 19th of 20 in class
- 386g/mile CO2
Where it stands
Compared only with the gasoline models of its class it is 7th of 8 gasoline small SUVs, in the bottom quarter. The median of that narrower group is 24.5 MPG, against 26 MPG for all small SUVs together.
Among all gasoline models of the year, regardless of size, it is 17th of 24 gasoline models, in the lower half.
In its class, just ahead of it is the BMW X4 at 24 MPG and just behind it is the Kia Telluride at 22 MPG.
Fuel cost and CO2
At 15,000 miles a year with 55% of them in the city, with premium gasoline at $5.48 per gallon, the annual fuel bill of the most efficient version is about $3,550. That is $625 more than the small SUVs median of $2,925, which makes it tied for 19th of 20 small SUVs, in the bottom quarter.
Tailpipe CO2 is 386 g/mile, 66 g/mile above the small SUVs median of 319.5.
Rated versions
Its city rating is 21 and its highway rating 26: the highway figure is 5 higher. 4 versions are rated for 2025. The most efficient, XT6 AWD: 2.0 L, 4 cyl, Automatic (S9), AWD, gets 23 MPG; the least efficient listed, XT6 AWD: 3.6 L, 6 cyl, Automatic (S9), AWD, gets 20 MPG, a gap of 3 MPG.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile |
|---|---|---|---|---|---|
| XT6 AWD: 2.0 L, 4 cyl, Automatic (S9), AWD | 23 | 21 | 26 | $3,550 | 386 |
| XT6 FWD: 2.0 L, 4 cyl, Automatic (S9), FWD | 23 | 21 | 27 | $3,550 | 386 |
| XT6 FWD: 3.6 L, 6 cyl, Automatic (S9), FWD | 21 | 19 | 26 | $3,200 | 418 |
| XT6 AWD: 3.6 L, 6 cyl, Automatic (S9), AWD | 20 | 18 | 25 | $3,350 | 435 |
Year by year
The Cadillac XT6 is in the data for 6 of the 8 model years from 2019 to 2026. Between 2020 and 2025 the best combined rating rose by 3 MPG, from 20 to 23. The number of rated versions grew from 2 to 4. Fuel cost for the best version is $3,550 in the latest data against $3,350 in 2020, although the file applies today's fuel prices to every model year, so that change comes from the rating, not from prices.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2025 | 4 | 23 | 20 | $3,550 | 386 | 29 |
| 2024 | 4 | 23 | 21 | $3,550 | 386 | 28 |
| 2023 | 4 | 23 | 21 | $3,550 | 386 | 27 |
| 2022 | 4 | 23 | 21 | $3,550 | 386 | 26 |
| 2021 | 4 | 23 | 21 | $3,550 | 386 | 26 |
| 2020 | 2 | 20 | 20 | $3,350 | 446 | 26 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| BMW X4 Hybrid | Hybrid | 23 | $3,550 | 2025 |
| BMW X4 | Gasoline | 24 | $3,400 | 2025 |
| Kia Telluride | Gasoline | 22 | $3,050 | 2025 |
| Maserati Grecale Hybrid | Hybrid | 24 | $3,400 | 2025 |
| Infiniti QX55 | Gasoline | 25 | $3,300 | 2025 |
Compare and rank
Rankings: Small SUVs.
Data: US EPA and DOE, as prepared in methods and data.