2018 Cadillac CT6 fuel economy
The EPA lists 4 versions of the 2018 Cadillac CT6. Combined fuel economy ranges from 21 to 25 MPG; the most efficient version is rated 22 city / 30 highway.
At a glance
- Combined
- 21 to 25 MPG depending on version
- City and highway
- 22 and 30 most efficient version
- Yearly fuel cost
- $3,300 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 | Range |
|---|---|---|---|---|---|---|---|
| CT6 Automatic (S8) | 4-cyl 2.0L | Rear-Wheel Drive | 22 | 30 | 25 MPG | $3,300 | |
| CT6 Plug-In Automatic (variable gear ratios) | 4-cyl 2.0L Plug-in Hybrid | Rear-Wheel Drive | 23 | 29 | 25 MPG | $3,300 | 430 mi |
| CT6 AWD Automatic (S8) | 6-cyl 3.0L | All-Wheel Drive | 18 | 26 | 21 MPG | $3,900 | |
| CT6 AWD Automatic (S8) | 6-cyl 3.6L | All-Wheel Drive | 18 | 27 | 21 MPG | $3,200 |
At EPA assumptions, the most efficient version costs about $3,300 per year in fuel, versus $3,200 for the least efficient.