Photo: Cadillac CT6 by JustAnotherCarDesigner, CC0, via Wikimedia Commons. It shows the model, not always this exact version.
Cadillac · model year 2018
2018 Cadillac CT6 AWD
Large · All-Wheel Drive · Gas · EPA class: Large Cars
EPA figures · 2018fueleconomy.gov
21MPG combined
18/26MPG city / highway
$3,900fuel a year
424 g CO₂ per mile 3.0 L 6-cyl turbo Automatic (S8)
This car on fueleconomy.gov, read 2 October 2026. Your own figures depend on how and where you drive.
Where it places
Every figure on record
- Combined MPG
- 21 MPG
- City MPG
- 18 MPG
- Highway MPG
- 26 MPG
- Annual fuel cost
- $3,900
- Tailpipe CO₂
- 424 g per mile
- Model year
- 2018
- Body
- Car
- EPA size class
- Large Cars
- Drive
- All-Wheel Drive
- Engine
- 3.0 L 6-cyl turbo
- Transmission
- Automatic (S8)
- Fuel
- Gasoline
Efficiency
Running cost
The car
Powertrain
More Cadillac model years
2018 Cadillac ATS
23 MPG · $3,550 fuel a year 2018 Cadillac ATS AWD
22 MPG · $3,050 fuel a year 2018 Cadillac ATS AWD
25 MPG · $3,300 fuel a year
2018 Cadillac ATS-V
20 MPG · $4,100 fuel a year 2018 Cadillac ATS-V
19 MPG · $4,350 fuel a year 2018 Cadillac CT6
25 MPG · $3,300 fuel a year 2018 Cadillac CT6 AWD
21 MPG · $3,200 fuel a year