The 2024 Cadillac CT5-V with the twin-turbo 3.0L V6 gets 21 MPG combined. This isn’t a car for hypermilers or those purely chasing efficiency; it’s for drivers who prioritize a potent blend of performance and luxury in a manageable size. The CT5-V offers near-track-ready capability, and that requires compromise. Fuel economy is that compromise.

City and highway performance

The EPA estimates for the CT5-V’s fuel economy break down to 18 MPG in the city and 27 MPG on the highway. The city figure reflects the demands placed on the engine during stop-and-go traffic, where the turbochargers are constantly spooling and the engine is working harder to accelerate from a standstill. The highway number shows the CT5-V’s ability to deliver respectable efficiency when cruising at a steady speed. This is aided by the smooth-shifting 10-speed automatic transmission (S10) which keeps the engine in its sweet spot at highway speeds.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Cadillac CT5-V at exactly $2,750. This figure is calculated based on driving 15,000 miles per year and using the national average fuel price. Because gasoline prices vary enormously from day to day and state to state, your real-world fuel costs may be more or less than this figure. The EPA’s estimate is a good means of comparison between vehicles, but not an ironclad prediction of your personal expenses.

Real-world expectations

While the EPA provides a standardized test, real-world fuel economy often varies. Aggressive driving, frequent short trips, and heavy use of the car’s performance features will negatively influence fuel efficiency. However, a driver who prioritizes smooth acceleration and anticipates traffic flow can likely achieve figures closer to the EPA’s highway estimate, even in mixed driving conditions. The CT5-V encourages spirited driving, so it takes conscious effort to achieve optimal fuel economy.

How it compares

The CT5-V’s fuel economy is competitive within its segment, but clear differences exist. The BMW M340i, a direct competitor, achieves a slightly better 26 MPG combined. That is a notable advantage for drivers concerned with fuel costs. The Audi S4, another contender, manages around 24 MPG combined. Even the Mercedes-AMG C43 comes in around 21 MPG combined, so the CT5-V fits right in to this competitive segment. These numbers underscore the trade-off inherent in selecting a performance-oriented sedan. Each manufacturer makes different design choices, and these translate directly to observed fuel economy. If fuel economy is a top priority, checking all Cadillac fuel economy data might be useful before committing to the CT5-V.

Tips to maximize efficiency

Minimize aggressive acceleration. The CT5-V’s twin-turbo engine responds instantly to throttle input, but gentler acceleration will significantly reduce fuel consumption, especially in city driving. Enjoy the V6’s power when you want to, but be mindful during everyday commutes.

Use cruise control on the highway. Maintaining a consistent speed helps optimize fuel efficiency by reducing unnecessary acceleration and deceleration. Programming cruise control even a few miles per hour below the speed limit can make a noticeable difference on longer drives.

Ensure proper tire inflation, and routine maintenance. Regularly check your tire pressure and adhere to the manufacturer’s recommended service schedule. Underinflated tires create added friction, reducing fuel economy, while neglecting maintenance can impact engine performance and efficiency. Also, check the CT5 MPG across all years to understand year-to-year differences.

Reduce unnecessary weight. Carrying excess cargo in the trunk or backseat adds weight to the vehicle, forcing the engine to work harder and consume more fuel. Clear out any unnecessary items to improve fuel efficiency.

Avoid idling. Letting the engine idle for extended periods consumes fuel without covering any distance. If you anticipate being stationary for more than a minute, consider turning off the engine to conserve fuel, especially with the CT5-V’s quick and smooth restart system.