Cadillac · 2023
CT4 2.0L 4-cyl
✓ EPA Verified
Premium Gasoline
Compact Cars
Rear-Wheel Drive
City
23
MPG
Combined
27
MPG
Highway
34
MPG
Annual Fuel Cost
$2,150
Based on 15,000 miles/year · EPA estimates
Class Comparison — Compact Cars
Bottom 45%
Better than 45 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 27 MPG
This vehicle
27 MPG
Class average
33 MPG
Class lowest
12 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
331 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine2.0L 4-cyl
TransmissionAutomatic (S8)
DriveRear-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassCompact Cars
Engine DescSIDI
Start-StopYes
EPA Vehicle ID45499

The 2023 Cadillac CT4’s 2.0L turbocharged four-cylinder gets 27 MPG combined. This fuel economy is acceptable, but it’s not class-leading. This luxury sedan targets younger buyers or those downsizing. It prioritizes sharp styling and controlled handling over saving gas. The CT4 buyer wants a well-appointed interior, distinctive design, and the Cadillac badge. They also understand that those qualities affect fuel consumption.

City and highway performance

The EPA estimates the 2023 Cadillac CT4 2.0L achieves 23 MPG in city driving and 34 MPG on the highway. The city rating is typical for a turbocharged engine in this class. This reflects the start-and-stop conditions where the turbocharger spools up often. However, the highway figure is reasonably strong. It shows the CT4 is comfortable and relatively efficient on long trips. The 8-speed automatic transmission helps optimize fuel economy. It keeps the engine in its best range at higher speeds.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 CT4 2.0L is $2,150. This is based on driving 15,000 miles per year. It assumes a mix of city and highway driving, plus the national average fuel price. Your actual fuel costs will vary. They depend on how much you drive, your driving style, and local gasoline prices. Still, $2,150 provides a useful benchmark for comparing the CT4’s running costs to similar vehicles.

Real-world expectations

EPA figures are a good starting point, but real-world fuel economy can differ. Aggressive driving, frequent short trips, and extended idling can hurt your mileage. Colder weather or higher altitudes may also reduce fuel economy. When considering the CT4’s fuel consumption, factor in your driving habits and environment. Many owners report figures close to the EPA’s ratings, but some find their mileage slightly lower.

How it compares

The 2023 Cadillac CT4’s fuel economy is in the middle of its class. For example, the BMW 330i achieves a combined EPA rating of 28 MPG. The Audi A4 40 TFSI gets 31 MPG combined. On the other hand, the Mercedes-Benz C300 manages 28 MPG combined, nearly the same as the CT4. These differences can add up over a year. CT4 buyers put more weight on styling and brand, even with slightly more economical alternatives. Review CT4 MPG across all years to see trends.

Tips to maximize efficiency

The CT4’s turbocharger is responsive. Quick acceleration will noticeably reduce fuel economy. Accelerate smoothly and watch traffic to avoid constant acceleration. Avoid quick starts, and increase speed gradually instead. Try to hold a steady speed, especially on the highway, for the best MPG.

Regular maintenance is critical for good fuel efficiency. Keep your tires inflated to the recommended pressure. Underinflated tires increase rolling resistance and lower MPG. Make sure the engine air filter is clean. A dirty filter restricts airflow and makes the engine work harder. Follow Cadillac’s recommended maintenance schedule for routine service.

Reduce unnecessary weight in the vehicle. Heavy items, like sports equipment or tools, hurt fuel economy. Remove unnecessary items to improve the CT4’s efficiency. Even a small weight reduction can matter, especially in city driving.

The CT4’s 8-speed automatic transmission helps fuel economy. You may improve it more by using “Tour” or “Eco” mode, if equipped. These modes often adjust engine and transmission settings to prioritize fuel savings. See your owner’s manual for details on each mode’s specific features and benefits. Learn more about all Cadillac fuel economy data.