Cadillac XT6 MPG & Fuel Economy
The 2025 Cadillac XT6 gets up to 23 MPG combined (21 city / 27 highway) in EPA testing.
Latest model year (2025):
The Cadillac XT6 gets up to 23 MPG combined (21 city / 27 highway) in the Auto (S9), 4 cyl, 2.0 L trim.
Cadillac XT6 MPG — All Years
| Year | Trim | Engine | Fuel | City (MPG) | Hwy (MPG) | Combined (MPG) |
|---|---|---|---|---|---|---|
| 2025 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 27 | 23 |
| 2025 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 26 | 23 |
| 2025 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 19 | 26 | 21 |
| 2025 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 18 | 25 | 20 |
| 2024 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 26 | 23 |
| 2024 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 27 | 23 |
| 2024 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 19 | 26 | 21 |
| 2024 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 18 | 25 | 21 |
| 2023 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 26 | 23 |
| 2023 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 27 | 23 |
| 2023 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 18 | 25 | 21 |
| 2023 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 19 | 26 | 21 |
| 2022 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 27 | 23 |
| 2022 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 26 | 23 |
| 2022 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 19 | 26 | 21 |
| 2022 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 18 | 25 | 21 |
| 2021 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 26 | 23 |
| 2021 | Auto (S9), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 21 | 27 | 23 |
| 2021 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 19 | 26 | 21 |
| 2021 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 18 | 25 | 21 |
| 2020 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 18 | 25 | 20 |
| 2020 | Auto (S9), 6 cyl, 3.6 L | 6 3.6L | Regular Gasoline | 17 | 24 | 20 |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
Cadillac XT6 MPG FAQ
What is the MPG of the Cadillac XT6?
The Cadillac XT6 gets up to 23 MPG combined (21 city / 27 highway) in the 2025 model year. Fuel economy varies by engine and trim — see the full table above for details.
Which Cadillac XT6 trim has the best fuel economy?
The Auto (S9), 4 cyl, 2.0 L trim offers the best combined fuel economy at 23 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.