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2020 Cadillac CT4 Premium Luxury
Shown: 2020 Cadillac CT4 Premium Luxury. Photo: Kevauto, CC BY-SA 4.0, via Wikimedia Commons
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  • Small cars
  • MY2020–2026

Cadillac CT4 MPG & Fuel Cost by Year

7 model years · 2020–2026

26 MPG
Combined
22 MPG
City
32 MPG
Highway
Annual cost · MY2026 CT4 2.0L 4-cyl turbo RWD
$3,110

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

All Cadillac models

Cadillac CT4 fuel economy at a glance

EPA has rated the Cadillac CT4 for 7 model years, 2020 to 2026. Across those years its combined rating runs 18–27 MPG. The latest model year, 2026, has 8 configurations rated 18–26 MPG combined and costing $3,110–$4,390 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2020 is the 2023 CT4 2.0L 4-cyl turbo RWD, at 27 MPG.

Cadillac CT4 MPG by year

182022242628 20202026 Gas 182022242628 20202026 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Cadillac CT4: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2020-2026 (2020) Generation page
2026 18–26 $3,110–$4,390
2025 18–26 $3,110–$4,390
2024 18–26 $3,110–$4,420
2023 18–27 $3,000–$4,420
2022 18–27 $3,000–$4,420
2021 23–27 $2,960–$3,490
2020 23–27 $2,960–$3,490

Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.

Cadillac CT4 generations

1 generations between 2020 and 2026. Open one for the table of every model year and configuration.

2026 powertrain options

Gas · 2.0L, 2.7L, 3.6L
Combined
18–26 MPG
Per year
$3,110–$4,390
See gas configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · premium gasoline $5.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Cadillac CT4's gas mileage by year?

EPA combined ratings for the Cadillac CT4 run 18–27 MPG across model years 2020 to 2026. The latest year, 2026, is rated 18–26 MPG.

Which Cadillac CT4 model year has the best gas mileage?

The 2023 Cadillac CT4 CT4 2.0L 4-cyl turbo RWD has the highest combined rating since 2020, at 27 MPG.

How much does a Cadillac CT4 cost to fuel per year?

For MY2026, EPA-rated configurations cost $3,110–$4,390 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,110.

Has the Cadillac CT4's fuel economy improved over time?

No. The most efficient configuration moved from 27 MPG in 2020 to 26 MPG in 2026, 1 MPG less.