While the 2020 Cadillac CT5 with the 3.0L V6 might not win awards for fuel economy with its 21 MPG combined rating, luxury sedan buyers who prioritize performance will likely find it acceptable. It’s not a hybrid or an economy-focused car, but rather a statement, offering responsive power and stylish design. The CT5 3.0T is for drivers who enjoy spirited performance without completely ignoring fuel costs.

City and highway performance

The EPA estimates for the 2020 CT5 3.0T are 19 MPG in the city and 26 MPG on the highway. The city figure reflects the engine’s quick response, often leading to more aggressive acceleration. Highway mileage reveals the engine’s efficiency at steady cruising speeds, especially with the 10-speed automatic transmission optimizing gear selection. These figures should satisfy the typical CT5 buyer who takes mainly shorter trips and values quick acceleration with smooth power.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Cadillac CT5 3.0L V6 at $2,750. This is based on driving 15,000 miles per year and using national average fuel prices. Individual costs will vary depending on local fuel prices, driving habits, and the ratio of city to highway driving. This cost aligns with other performance-oriented luxury sedans, a factor CT5 buyers will consider in the overall cost of ownership.

Real-world expectations

EPA provides a standard for fuel economy, but actual MPG depends greatly on driving habits. Hard acceleration, frequent stops, and neglecting maintenance can all hurt fuel efficiency. However, drivers who focus on smooth driving and use cruise control on the highway can often get closer to the EPA’s highway estimate. Given that this vehicle is often purchased by drivers who enjoy performance, they might see real-world figures slightly below the EPA estimate.

How it compares

The 2020 Cadillac CT5 3.0T competes with other luxury sedans. The BMW 330i, for example, achieves a combined 28 MPG with its turbocharged 4-cylinder, a considerable advantage for those wanting lower fuel costs. The Mercedes-Benz C300 gets around 25 MPG combined, also better than the CT5’s 21 MPG. However, the driving experience is different from the Cadillac. The Audi A4, with its fuel-efficient turbocharged engine, can deliver around 27 MPG combined. Buyers often choose the CT5 and accept slightly lower MPG figures for the stronger V6 engine, unique Cadillac look, and driving feel. If you want to compare all Cadillac fuel economy data, there are many options available.

Tips to maximize efficiency

Make the most of the CT5’s drive modes. A more fuel-efficient mode will change the engine mapping and transmission shift points to favor economy over performance. This is useful for commuting when maximizing MPG is more important than full engine power. Learn more about CT5 MPG across all years to help you assess the impact of your driving style.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which hurts fuel economy. Check your tire pressure regularly and inflate them to the pressure listed on the sticker inside the driver’s side door. This is a simple but effective way to improve your MPG.

Avoid idling too much. If you’re stopped for more than a minute, turn off the engine. Modern engines are designed to restart quickly and efficiently, and idling wastes fuel. This is important in cities where stoplights and traffic jams can mean a lot of idling.

Keep a steady speed on the highway. Avoid hard acceleration and braking, which use more gas. Use cruise control on long highway trips to keep a consistent speed and get better fuel efficiency. Predicting traffic and avoiding sudden moves will also help MPG.

Reduce weight in the car. Carrying extra items in the trunk or back seat adds weight, and reduces fuel economy. Remove anything you don’t need to lighten the load and improve MPG. Even small amounts of extra weight can add up over time, particularly on shorter drives.