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.

Verifiedfueleconomy.gov · Verified August 11, 2026

Cadillac XT6 MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2025Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212723
2025Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212623
2025Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline192621
2025Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline182520
2024Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212623
2024Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212723
2024Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline192621
2024Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline182521
2023Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212623
2023Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212723
2023Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline182521
2023Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline192621
2022Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212723
2022Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212623
2022Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline192621
2022Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline182521
2021Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212623
2021Auto (S9), 4 cyl, 2.0 L4 2.0LPremium Gasoline212723
2021Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline192621
2021Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline182521
2020Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline182520
2020Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline172420

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.

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