2018 Cadillac CT6
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
- Fuel economy
- 21 to 25 MPG combined
Sources: NHTSA complaints, recalls and 5-Star ratings; U.S. EPA
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.