Cadillac · 2016–2020 · Gas
Cadillac CT6 MPG by year
The EPA has rated 5 model years of the Cadillac CT6, from 2016 to 2020. The most fuel-efficient year is the 2016, at 25 MPG combined in its best configuration. The best 2020 model is 16% less efficient than the best 2016 model (21 vs. 25 MPG). The 2020 model is 7% less efficient than the median large car that year (21 vs. 22.5 MPG).
Combined MPG by model year
- CT6, most efficient version
- Range across configurations
- Class median
Shaded band: range across that year's configurations. Class median: same-year models in the same class, rated in MPG. Click a point to open that model year; the table below lists every value.
Every CT6 model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 2020 | Gas | 21 MPG lowest 17 |
18 / 27 | 22.5 | — | 2 | $2,214 |
| 2019 | Gas | 28 MPG lowest 17 |
24 / 34 | 22.5 | — | 4 | $2,116 |
| 2018 | Gas | 21 MPG lowest 21 |
18 / 27 | 22.5 | — | 3 | $2,214 |
| 2017 | Gas | 21 MPG lowest 21 |
18 / 27 | 23 | — | 3 | $2,214 |
| 2016 | Gas | 25 MPG lowest 21 |
22 / 30 | 22 | — | 3 | $1,860 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare CT6 model years
See how much a newer CT6 would save over an older one.
Models similar to the Cadillac CT6
Other Cadillac CT6 versions
Frequently asked questions
Which Cadillac CT6 year has the best fuel economy?
The 2016 Cadillac CT6, rated up to 25 MPG combined. At 15,000 miles a year with $3.10/gal regular gas, that works out to about $1,860 a year.
Which Cadillac CT6 year has the worst fuel economy?
The 2017 model, whose most efficient version is rated 21 MPG combined (about $2,214 a year to fuel).
What is the fuel economy of the latest Cadillac CT6?
The 2020 Cadillac CT6 is rated up to 21 MPG combined.