Cadillac XTS MPG by model year
Combined EPA ratings for each Cadillac XTS model year. Years with identical ratings are grouped together.
| Model year | Combined MPG | Best hwy | Versions |
|---|---|---|---|
| 2018–2019 | 18–22 MPG | 28 | 3 |
| 2017 | 18–22 MPG | 28 | 3 |
| 2016 | 18–21 MPG | 28 | 3 |
| 2015 | 19–21 MPG | 28 | 3 |
| 2014 | 19–21 MPG | 28 | 3 |
| 2013 | 20–21 MPG | 27 | 2 |
Model years before 2005 are listed for reference without a separate page.
Source: U.S. Environmental Protection Agency and U.S. Department of Energy, fueleconomy.gov. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.