2015 Cadillac XTS fuel economy
The EPA lists 5 versions of the 2015 Cadillac XTS. Combined fuel economy ranges from 17 to 21 MPG; the most efficient version is rated 18 city / 28 highway.
At a glance
- Combined
- 17 to 21 MPG depending on version
- City and highway
- 18 and 28 most efficient version
- Yearly fuel cost
- $3,200 EPA estimate, most efficient version
Source: U.S. EPA fueleconomy.gov
Every version the EPA tested
| Version | Engine | Drive | City | Highway | Combined | Yearly fuel cost |
|---|---|---|---|---|---|---|
| XTS Automatic (S6) | 6-cyl 3.6L | Front-Wheel Drive | 18 | 28 | 21 MPG | $3,200 |
| XTS AWD Automatic (S6) | 6-cyl 3.6L | All-Wheel Drive | 17 | 26 | 20 MPG | $3,350 |
| XTS AWD Automatic (S6) | 6-cyl 3.6L | All-Wheel Drive | 16 | 24 | 19 MPG | $3,550 |
| XTS Hearse Automatic (S6) | 6-cyl 3.6L | Front-Wheel Drive | 14 | 21 | 17 MPG | $3,950 |
| XTS Limo Automatic (S6) | 6-cyl 3.6L | Front-Wheel Drive | 15 | 21 | 17 MPG | $3,950 |
At EPA assumptions, the most efficient version costs about $3,200 per year in fuel, versus $3,950 for the least efficient.