Cadillac XT6 MPG by Year
Here's the official EPA Cadillac XT6 MPG for every engine and drivetrain from 2020 to 2025.
XT6 MPG by Year and Version
The EPA has rated 22 configurations of the XT6. Pick a year to compare engines and drivetrains.
XT6 MPG Over the Years
Each bar shows the range of combined MPG across every XT6 configuration the EPA rated that year, from the thirstiest version to the most efficient. Hover or tap a year to see the numbers.
Years When XT6 Fuel Economy Changed
The XT6's ratings stay flat for long stretches. These are the model years where something changed enough to matter when you're comparing used ones.
- 2021: The top combined rating rises to 23 MPG, up from 20 MPG the year before.
How the XT6 Compares
The EPA rated 78 small SUVs for 2025. The best XT6 version, at 23 MPG combined, ties for 62nd with 6 other models of 78. Combined ratings in the class run from 20 to 53 MPG, with a median of 26.5. Plug-in hybrids and electric models are ranked separately.
| Rank | Model | Combined |
|---|---|---|
| 1 | Kia Niro | 53 MPG |
| 2 | Kia Sportage | 43 MPG |
| 3 | Toyota Corolla Cross | 42 MPG |
| 4 | Honda CR-V | 40 MPG |
| 5 | Ford Escape | 39 MPG |
| 62 | Cadillac XT6 | 23 MPG |
What Does a XT6 Cost to Fuel?
Pick a XT6, then enter your gas price and how much you drive. The math uses the EPA city and highway ratings, weighted by how much of your driving happens in each.
XT6 MPG Questions
Which XT6 year gets the best gas mileage?
The 2021 to 2025 XT6 FWD holds the top EPA rating at 23 MPG combined (21 city, 27 highway).
Does all-wheel drive hurt XT6 fuel economy?
Not by much. On the 2025 XT6, the best front-wheel drive version is rated at 23 MPG combined and the best all-wheel drive version at 23 MPG.
Why doesn't my XT6 match the EPA numbers?
EPA ratings come from standardized lab tests. Your results depend on speed, climate, idling, passengers and cargo, roof racks, tire pressure and upkeep. The ratings are best for comparing one vehicle against another. To track your own numbers, try the MPG calculator.
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Where These Numbers Come From
This page was built by Cedrick Reese from the U.S. EPA fuel economy dataset on fueleconomy.gov, which holds 22 ratings for the Cadillac XT6 from 2020 to 2025. Each row in the table links to the matching EPA vehicle record, so you can check any figure against the source. When the EPA posts an updated file with new model years or corrected ratings, this page is rebuilt from it. The cost calculator uses the gas price you enter rather than a national average, so the result fits where you live.
Ratings on this page come from the EPA file downloaded on October 1, 2026.
Sources
- Download Fuel Economy Data, fueleconomy.gov, U.S. DOE and EPA
- Factors that affect fuel economy, fueleconomy.gov