MPG AtlasCadillac CT6 MPG
EPA fuel economy for 17 Cadillac CT6 trims sold from 2016 to 2020. Best ever: 28 MPG (2019 CT6). Latest model year 2020: 17 to 21 MPG combined across 2 trims.
Cadillac CT6 fuel cost calculator
Enter what you pay for fuel and how far you drive in a year. The starting prices are the ones the EPA uses for its own yearly fuel-cost estimates. Every cost on this page updates as you type.
At $4.16 a gallon for regular, $5.16 for premium and 15,000 miles a year, the cheapest 2020 Cadillac CT6 to fuel is the CT6 AWD, 3.6 L, 6 cyl (21 MPG) at $2,970 a year. The CT6 AWD, 4.2 L, 8 cyl (17 MPG) costs $4,550, so the thriftier trim saves $1,580 a year and $7,900 over five years.
| 2020 trim | Engine | Transmission | Drive | Fuel | Comb | Cost/yr | vs cheapest |
|---|---|---|---|---|---|---|---|
| CT6 AWD | 3.6 L, 6 cyl | Auto (S10) | AWD | Regular | 21 | $2,970 | cheapest |
| CT6 AWD | 4.2 L, 8 cyl | Auto (S10) | AWD | Premium | 17 | $4,550 | +$1,580 |
Cost per year is miles per year divided by the EPA combined rating, times your fuel price; electric vehicles use the EPA's kWh per 100 miles instead. Plug-in hybrids blend electricity and gasoline by the EPA utility factor, the share of miles the EPA expects on battery power. Rounded to the nearest $10. Your prices are kept in this browser only.
Cadillac CT6 MPG by year
| Year | Best combined | City | Hwy | Best trim that year | Trims |
|---|---|---|---|---|---|
| 2020 | 21 | 18 | 27 | CT6 AWD, 3.6 L, 6 cyl, Auto (S10) | 2 |
| 2019 | 28 | 24 | 34 | CT6, 2.0 L, 4 cyl, Auto (S10) | 4 |
| 2018 | 25 | 22 | 30 | CT6, 2.0 L, 4 cyl, Auto (S8) | 4 |
| 2017 | 26 | 23 | 29 | CT6 Plug-In, 2.0 L, 4 cyl, Plug-in Hybrid, Auto (variable gear ratios) | 4 |
| 2016 | 25 | 22 | 30 | CT6, 2.0 L, 4 cyl, Auto (S8) | 3 |
Every Cadillac CT6 trim
| Year | Trim | Engine | Transmission | Drive | Fuel | City | Hwy | Comb | CO2 g/mi | Fuel cost/yr |
|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | CT6 AWD | 3.6 L, 6 cyl | Auto (S10) | AWD | Regular | 18 | 27 | 21 | 420 | $2,970 |
| 2020 | CT6 AWD | 4.2 L, 8 cyl | Auto (S10) | AWD | Premium | 14 | 25 | 17 | 521 | $4,550 |
| 2019 | CT6 | 2.0 L, 4 cyl | Auto (S10) | RWD | Premium | 24 | 34 | 28 | 317 | $2,760 |
| 2019 | CT6 AWD | 3.6 L, 6 cyl | Auto (S10) | AWD | Regular | 18 | 27 | 21 | 420 | $2,970 |
| 2019 | CT6 AWD | 3.0 L, 6 cyl | Auto (S10) | AWD | Premium | 18 | 26 | 21 | 429 | $3,690 |
| 2019 | CT6 AWD | 4.2 L, 8 cyl | Auto (S10) | AWD | Premium | 14 | 25 | 17 | 521 | $4,550 |
| 2018 | CT6 | 2.0 L, 4 cyl | Auto (S8) | RWD | Premium | 22 | 30 | 25 | 360 | $3,100 |
| 2018 | CT6 Plug-In | 2.0 L, 4 cyl, Plug-in Hybrid | Auto (variable gear ratios) | RWD | Premium and Electricity | 23 | 29 | 25 | 144 | $1,980 |
| 2018 | CT6 AWD | 3.0 L, 6 cyl | Auto (S8) | AWD | Premium | 18 | 26 | 21 | 424 | $3,690 |
| 2018 | CT6 AWD | 3.6 L, 6 cyl | Auto (S8) | AWD | Regular | 18 | 27 | 21 | 416 | $2,970 |
| 2017 | CT6 Plug-In | 2.0 L, 4 cyl, Plug-in Hybrid | Auto (variable gear ratios) | RWD | Premium and Electricity | 23 | 29 | 26 | 144 | $1,930 |
| 2017 | CT6 | 2.0 L, 4 cyl | Auto (S8) | RWD | Premium | 22 | 30 | 25 | 359 | $3,100 |
| 2017 | CT6 AWD | 3.6 L, 6 cyl | Auto (S8) | AWD | Regular | 18 | 27 | 21 | 417 | $2,970 |
| 2017 | CT6 AWD | 3.0 L, 6 cyl | Auto (S8) | AWD | Premium | 18 | 26 | 21 | 424 | $3,690 |
| 2016 | CT6 | 2.0 L, 4 cyl | Auto (S8) | RWD | Regular | 22 | 30 | 25 | 357 | $2,500 |
| 2016 | CT6 AWD | 3.0 L, 6 cyl | Auto (S8) | AWD | Premium | 18 | 26 | 21 | 424 | $3,690 |
| 2016 | CT6 AWD | 3.6 L, 6 cyl | Auto (S8) | AWD | Regular | 18 | 27 | 21 | 414 | $2,970 |
CO2 is tailpipe grams per mile from the EPA test. Fuel cost per year uses the prices and miles in the calculator above (the EPA's own prices and 15,000 miles a year until you change them); blank when the fuel has no price here (hydrogen, natural gas).
Compare with other 2020 Large Cars
| Vehicle | Combined | City | Hwy |
|---|---|---|---|
| 2020 Tesla Model S Long Range Plus | 117 | 121 | 112 |
| 2020 Porsche Taycan 4S Perf Battery Plus | 69 | 68 | 71 |
| 2020 Hyundai Ioniq Blue | 58 | 57 | 59 |
| 2020 Hyundai Sonata Hybrid Blue | 52 | 50 | 54 |
| 2020 Honda Accord Hybrid | 48 | 48 | 47 |
| 2020 Honda Civic 5Dr | 34 | 31 | 40 |
Questions people ask
What is the best MPG for a Cadillac CT6?
The most efficient Cadillac CT6 the EPA has rated is the 2019 CT6 at 28 MPG combined (24 city, 34 highway).
What MPG does the 2020 Cadillac CT6 get?
2020 Cadillac CT6 trims range from 17 to 21 MPG combined, depending on engine, transmission and drivetrain.
Which Cadillac CT6 has the worst fuel economy?
The 2020 CT6 AWD is the lowest rated at 17 MPG combined.
How much does it cost to fuel a Cadillac CT6 for a year?
At $4.16 a gallon for regular, $5.16 for premium and 15,000 miles a year, the cheapest 2020 Cadillac CT6 to fuel is the CT6 AWD, 3.6 L, 6 cyl (21 MPG) at $2,970 a year. The CT6 AWD, 4.2 L, 8 cyl (17 MPG) costs $4,550, so the thriftier trim saves $1,580 a year and $7,900 over five years.
More from Cadillac: every Cadillac model. Fuel types on this model: Premium, Premium and Electricity, Regular. EPA classes: Large Cars, Midsize Cars.