The 2023 Cadillac CT5 V with the 3.0L twin-turbo V6 gets 21 MPG combined. This isn’t a hypermiler, but the number is an acceptable compromise for buyers who want a legitimately quick and stylish sedan with all-weather grip and a premium badge, and are willing to pay for it at the pump. You tolerate this fuel economy to enjoy the Cadillac’s performance and luxury.

City and highway performance

The EPA estimates the CT5 V gets 18 MPG in the city and 27 MPG on the highway, which reveals its strengths and weaknesses. The city figure shows the engine working harder, dealing with stop-and-go traffic and lower average speeds, where the turbocharging isn’t as effective. The highway number, however, showcases the benefits of the 10-speed automatic transmission and the engine’s ability to cruise efficiently at higher speeds. Owners who often take road trips will likely see numbers closer to 27 MPG. Those primarily driving in cities will likely see closer to 18 MPG.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2023 Cadillac CT5 V is about $2,750. This is calculated using 15,000 miles per year and national average fuel prices. This is an estimate, and your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. Drivers who accelerate quickly or live in areas with higher fuel prices will see annual costs exceed this figure.

Real-world expectations

The EPA provides a standardized rating, but real-world fuel economy can differ. Owners of the CT5 V report numbers that change based on driving style and conditions. Aggressive acceleration and frequent use of the car’s performance can easily drop fuel economy below the EPA estimates. Using a more conservative driving style and smooth acceleration can help drivers achieve figures at or even slightly above the official ratings. The CT5 V is designed for performance, which impacts fuel economy. For further information, you can peruse CT5 MPG across all years.

How it compares

The CT5 V’s fuel economy places it within a segment of performance sedans. The BMW M340i, a direct competitor, gets an EPA-estimated 26 MPG combined. The Audi S4 gets around 24 MPG combined. A Mercedes-AMG C43 sedan boasts a similar range of 21-22 MPG combined. The CT5 V’s fuel economy is similar to other performance-oriented sedans in its class. Differences in MPG numbers often come down to engine size, horsepower output, and drivetrain configurations. Buyers in this segment often sacrifice a few MPG for a specific driving experience or brand preference. They are looking for a balance of performance, luxury, and style. Fuel economy is one factor.

Tips to maximize efficiency

With its twin-turbo V6, the CT5 V rewards smooth and deliberate throttle inputs. Avoid aggressive acceleration and hard braking. Gradual acceleration allows the turbos to spool up more efficiently. Anticipating stops reduces sudden braking, conserving momentum and reducing fuel consumption.

Ensure your tires are properly inflated to minimize rolling resistance and improve fuel economy. Check your tire pressure regularly and inflate to the recommended level specified on the tire placard located on the driver’s side doorjamb. Correctly inflated tires help your vehicle deliver its advertised MPG.

This model uses a 10-speed automatic transmission to maximize fuel economy by keeping the engine in its optimal power band. To help save fuel, avoid using manual shift mode unless you need it. Let the computer choose the gears for you.

Consider using premium fuel; while not always mandatory, it can optimize engine performance and efficiency, particularly in a turbocharged engine like the CT5 V’s. Refer to the owner’s manual for the manufacturer’s recommendation and adapt your fueling habits.

Reducing unnecessary weight in your vehicle can also improve fuel economy. Remove any items you don’t need, as extra weight impacts fuel consumption. Less weight means less fuel burned, so remove things for better mileage.

Looking to check out all Cadillac fuel economy data? You may be surprised at the differences in the brand’s fleet.