The 2022 Cadillac CT4 AWD with the 2.7L turbocharged four-cylinder gets 24 MPG combined, and there’s a story behind that number. It’s not a hybrid, a pure economy car, or even the base engine. This is the *high-output* version of Cadillac’s turbo-four, an engine engineered to deliver serious power in a segment often bogged down by less inspiring powertrains. The fuel economy reflects a choice; buyers value a responsive driving experience more than saving every penny at the pump. This CT4 isn’t for hypermilers; it’s for drivers who appreciate a luxury sport sedan that doesn’t feel weak.

City and highway performance

The EPA estimates the 2022 CT4 AWD with the 2.7L engine achieves 21 MPG in city driving and 29 MPG on the highway. The city figure reflects the inherent inefficiency of stop-and-go traffic where the turbocharger is constantly working, and the engine works harder to overcome inertia. The highway MPG is more reasonable, as the car can settle into a more efficient cruising speed. The 29 MPG number also demonstrates that Cadillac’s ten-speed automatic helps maximizes efficiency at higher speeds and contribute to the car’s performance. Achieving the 29 MPG highway figure requires resisting the urge to explore the engine’s ample passing power, which can be a challenge.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 Cadillac CT4 AWD 2.7L at $2,400 per year. This figure is based on driving 15,000 miles annually, using a blend of city and highway driving patterns, and assumes current national average fuel prices. Individual fuel costs will vary depending on driving habits and local fuel prices, but $2,400 provides a benchmark for comparing running costs with other vehicles. Drivers covering significantly more or less than 15,000 miles per year, or driving exclusively in the city or highway, will see their actual fuel costs differ from this estimate.

Real-world expectations

The EPA provides a standardized testing protocol, but real-world MPG can differ significantly. The CT4’s turbocharger is responsive, and exploring its power is enjoyable. Drivers with a heavy foot should expect to see figures closer to the 21 MPG city rating, even on mixed driving cycles. Conservative drivers, consciously working to maximize fuel economy, might see figures slightly above the 24 MPG combined rating. Things like ambient temperature, tire pressure, and the use of accessories like air conditioning can also affect fuel economy. Remember that the sticker MPG is a laboratory result; your own results will depend on driving habits.

How it compares

The CT4’s fuel economy needs to be considered with similar cars. The BMW 330i xDrive claims 28 MPG combined, making it a slightly more efficient option. Audi’s A4 quattro, rated at 28 MPG combined, mirrors those numbers. However, those vehicles’ base engines don’t pack the same punch as the strong Cadillac 2.7L. To get comparable power from BMW or Audi, buyers usually need to step up to more expensive, higher-performance trims that can actually have similar or worse fuel economy than the Cadillac. This is why consumers should always check all Cadillac fuel economy data to ensure they are making the best decision. A more direct competitor is the Genesis G70 3.3T AWD, which offers similar levels of performance but sacrifices some fuel economy, achieving around 20 MPG combined. Buyers considering the CT4 2.7L AWD likely prioritize responsive performance and are willing to accept slightly less gas to get it, and they may compare CT4 MPG across all years to see how the car has evolved.

Tips to maximize efficiency

Cadillac’s Drive Mode Select system offers different driving modes, including a more economical “Tour” mode. Selecting this mode adjusts throttle response and shift points to prioritize fuel efficiency over outright performance. It’s a simple adjustment that can yield improvements in combined MPG, especially during daily commutes.

Avoid aggressive acceleration and hard braking. The 2.7L engine delivers ample torque across a wide RPM range, so there’s no need to push the engine hard to maintain speed or accelerate. Smooth acceleration and coasting to decelerate will reduce fuel consumption.

Maintain proper tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and consuming more fuel. Check your tire pressures regularly and inflate them to the manufacturer’s recommended levels, typically found on a sticker inside the driver’s side door.

Minimize idling. Leaving the engine running while stationary burns fuel without covering any distance. If you anticipate being stopped for more than a minute, it’s best to turn off the engine. Modern vehicles, including the CT4, restart quickly.

Regular maintenance helps with fuel economy. Ensure that the engine is properly tuned, the air filter is clean, and the oil is changed according to the manufacturer’s recommendations. A well-maintained engine runs more efficiently, resulting in better MPG.