2015 Cadillac XTS
3 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| XTS | 18 | 28 | 21 | Regular Gasoline | Front-Wheel Drive | 3.6L 6-cyl | Automatic (S6) |
| XTS AWD | 16 | 24 | 19 | Regular Gasoline | All-Wheel Drive | 3.6L 6-cyl Turbo | Automatic (S6) |
| XTS AWD | 17 | 26 | 20 | Regular Gasoline | All-Wheel Drive | 3.6L 6-cyl | Automatic (S6) |