Cadillac XT6 MPG by year — every rating on record

The Cadillac XT6 has a combined EPA fuel economy rating for 6 model years, from 2020 to 2025. Across those years its best rated version returned 23 mpg (2021) and its thirstiest returned 20 mpg (2020). The EPA record holds 22 configurations for this nameplate, most recently a Small Sport Utility Vehicle 2WD / Small Sport Utility Vehicle 4WD.

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 XT6 placed highest in 2021 at #54 of 63, and lowest in 2025 at #74 of 82. It spent 0 of its 6 ranked years in the top half of its class.

Every configuration on record

All 22 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 1 year-over-year steps improved the top rating.

What XT6 fuel costs over a year

At the EPA's 11,500 miles a year, the 2025 Cadillac XT6 burns 500 to 575 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 2025 model year is $2,950 to $3,350 a year in fuel, or $5,500 more than the average new vehicle over five years.

How it compares with other Small Sport Utility Vehicle 2WD

Across the 152 nameplates EPA classifies as Small Sport Utility Vehicle 2WD, the median best combined rating is 29 mpg. At 23 mpg the Cadillac XT6 is 6 mpg below the median, which is worth about $362 a year at $3.50 a gallon.

• All Small Sport Utility Vehicle 2WD 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.