Cadillac CT6: MPG and fuel economy by year

The EPA has rated the Cadillac CT6 across 4 model years, from the 2016 Cadillac CT6 through the 2019 Cadillac CT6. The most recent 2019 Cadillac CT6 returns 28 combined MPG.

Pick a year below to open the full Cadillac CT6 page for that model year. Each year page covers combined, city, and highway MPG, the trim variants the EPA rates separately, the annual fuel cost across three driving patterns, and a year-over-year comparison so you can see whether the car has improved.

Fuel economy by model year

Combined MPG, city MPG, highway MPG, and the EPA's estimated annual fuel cost for every model year of the Cadillac CT6. Click any year to see the full breakdown for that model year, including trim variants, the drivetrain, and a comparison against other vehicles in its segment.

Year	Model	Combined MPG	City	Highway	Annual fuel cost
2019	2019 Cadillac CT6	28 MPG	24 MPG	34 MPG	$2,450
2018	2018 Cadillac CT6	25 MPG	22 MPG	30 MPG	$2,750
2017	2017 Cadillac CT6	25 MPG	22 MPG	30 MPG	$2,750
2016	2016 Cadillac CT6	25 MPG	22 MPG	30 MPG	$2,400

How the Cadillac CT6 compares against the Large Cars class

Buyers usually compare the Cadillac CT6 against other cars in the same EPA class. The list below shows the most efficient cars in the Large Cars class for the 2019 model year, the latest year on this page. Each link opens the full page for that car.

Source: U.S. EPA fuel economy dataset. Annual fuel cost assumes 15,000 miles of driving per year and a 55% city, 45% highway split.