Cadillac CT5 MPG by year — every rating on record

The Cadillac CT5 has a combined EPA fuel economy rating for 7 model years, from 2020 to 2026. Across those years its best rated version returned 27 mpg (2022) and its thirstiest returned 21 mpg (2020). The EPA record holds 28 configurations for this nameplate, most recently a Midsize Cars.

Year-by-year EPA ratings

Where it has stood in its class

Ranked against every other nameplate the EPA filed under the same class that year. The Cadillac CT5 placed highest in 2026 at #51 of 66, and lowest in 2020 at #72 of 124. It spent 0 of its 7 ranked years in the top half of its class.

Every configuration on record

All 28 configurations EPA lists for this nameplate, newest first.

How the rating has moved between model years

Comparing the best-rated configuration of each year. 1 of 2 year-over-year steps improved the top rating.

What CT5 fuel costs over a year

At the EPA's 11,500 miles a year, the 2026 Cadillac CT5 burns 442 to 548 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.

EPA’s own estimate for the 2026 model year is $3,000 to $3,700 a year in fuel, or $6,250 more than the average new vehicle over five years.

How it compares with other Midsize Cars

Across the 483 nameplates EPA classifies as Midsize Cars, the median best combined rating is 25 mpg. At 26 mpg the Cadillac CT5 is 1 mpg better the median, which is worth about $62 a year at $3.50 a gallon.

• All Midsize Cars rankings — every nameplate in the class, best to worst.

Other Cadillac nameplates

Every Cadillac model compared → — all nameplates ranked by best combined rating, with what each one costs a year.