23 MPG combined. That’s the number defining the 2024 Cadillac CT4-V equipped with the 2.7L turbocharged four-cylinder engine. The CT4-V 2.7L isn’t trying to get the best gas mileage; it’s for driving enthusiasts who want performance, a comfortable ride, and some American luxury in a compact, rear-wheel-drive car.

City and highway performance

The EPA estimates of 20 MPG in the city and 29 MPG on the highway offer more information. The lower city MPG reflects stop-and-go driving. The engine’s turbocharger uses extra fuel during acceleration, which impacts MPG, along with the vehicle’s weight. The 29 MPG highway rating suggests the CT4-V is more efficient at higher speeds, because of the smooth 10-speed automatic transmission. Many CT4-V owners use this car for commuting, so the highway number is likely more relevant for estimating their overall fuel consumption. Pushing the accelerator to use the available power will quickly decrease that highway figure.

Annual fuel cost

The EPA says the annual fuel cost for the 2024 Cadillac CT4-V 2.7L is $2,500. This is based on driving 15,000 miles per year and using national average fuel prices. The actual cost can change based on driving habits, local fuel prices, and the fuel type used. If you accelerate frequently or live where gas prices are high, expect to spend more than this estimate. Consistent highway driving and conservative acceleration will likely mean lower annual fuel expenses.

Real-world expectations

The EPA provides standardized testing data, but real-world fuel economy often differs. The CT4-V 2.7L is a good example. Its turbocharged engine and performance-oriented design mean that drivers who often use the car’s power will see fuel economy below the EPA estimates. Quick acceleration, spirited cornering, and long idling can all decrease fuel consumption. However, those who drive more conservatively and accelerate smoothly can often meet or exceed the EPA numbers, especially on longer highway trips. Check out CT4 MPG across all years to get a sense of typical ownership.

How it compares

The 2024 Cadillac CT4-V 2.7L competes with other vehicles in its class. The BMW M340i has a higher combined EPA rating of 26 MPG due to its mild-hybrid system, while also having more power. The Acura Integra Type S is rated at 24 MPG combined. For buyers who want the best fuel efficiency, these are good choices. The Lexus IS 350 F Sport (23 MPG combined) gets similar economy, but offers a different driving experience. The CT4-V stands out with its tuned chassis, refined styling, and American look. Buyers in this group value driving experience as much as low gas bills.

Tips to maximize efficiency

One of the easiest ways to improve fuel economy in the CT4-V is to drive smoothly. Avoid hard acceleration and braking, and try to maintain a consistent speed, especially on the highway. This keeps the turbocharger from engaging as much and keeps the engine running most efficiently.

Make sure your tires have the correct amount of air pressure. Underinflated tires create more rolling resistance, making the engine work harder and burn more fuel. Check your tire pressure often, especially when the temperature changes, as this can affect the pressure.

Avoid idling when possible. Letting the engine idle for long periods wastes fuel and lowers overall fuel economy. If you’ll be stopped for more than a minute or two, turn off the engine.

Consider using the CT4-V’s driving mode selector to choose the most efficient setting for your current driving. The “V-Mode” uses the car’s full potential, but “Tour” or “Snow/Ice” can prioritize fuel economy by changing throttle response and shifting patterns.

Regular maintenance is critical for good fuel efficiency. Make sure that your engine air filter is clean, your spark plugs are in good condition, and your engine oil is at the correct level. Scheduled maintenance ensures that the engine runs smoothly and efficiently, improving its fuel economy. All all Cadillac fuel economy data can be viewed for reference.