Cadillac · 2023
CT5 AWD 2.0L 4-cyl
✓ EPA Verified
Premium Gasoline
Midsize Cars
All-Wheel Drive
City
22
MPG
Combined
25
MPG
Highway
30
MPG
Annual Fuel Cost
$2,300
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$150
more per year
Class Comparison — Midsize Cars
Bottom 35%
Better than 35 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 25 MPG
This vehicle
25 MPG
Class average
35 MPG
Class lowest
13 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
358 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine2.0L 4-cyl
TransmissionAutomatic (S10)
DriveAll-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassMidsize Cars
Engine DescSIDI
Start-StopYes
EPA Vehicle ID45524

The 2023 Cadillac CT5 AWD 2.0L 4-cyl gets 25 MPG combined. This isn’t a hybrid, nor is it trying to be. Cadillac buyers in this segment want a stylish, comfortable, and engaging sedan with the added security of all-wheel drive. Fuel economy is a consideration, certainly, but it takes a backseat to the overall driving experience and the brand appeal of Cadillac.

City and highway performance

The EPA estimates the CT5 AWD with the 2.0L turbo achieves 22 MPG in the city and 30 MPG on the highway. These numbers reflect two very different driving environments and highlight the engine’s versatility. The 22 MPG city figure is realistic for stop-and-go traffic, but the 30 MPG highway rating is easily achievable on long road trips, particularly when using cruise control.

Don’t be surprised if aggressive driving significantly reduces both city and highway numbers, the turbocharged engine responds readily to a heavy foot, and that responsiveness comes at a price.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Cadillac CT5 AWD 2.0L 4-cyl at $2,300. This figure is calculated based on driving 15,000 miles per year, with a mix of city and highway driving, using the national average fuel price. Your actual fuel costs will vary depending on your driving habits, location, and local gas prices. Those who commute primarily in congested city traffic may exceed this estimate, while those who spend most of their time on the open highway may fall below it.

Real-world expectations

The EPA provides standardized testing, but real-world MPG often differs. How you drive, the terrain, and even tire pressure can significantly impact fuel efficiency. CT5 drivers who prioritize smooth acceleration, anticipate traffic flow, and regularly maintain their vehicle can expect to get close to the EPA estimates.

Frequent bursts of acceleration, neglecting maintenance, or consistently carrying excessive weight will almost certainly reduce MPG.

How it compares

In the competitive compact luxury sedan segment, the CT5’s fuel economy is generally in line with its AWD rivals. For example, the BMW 330i xDrive is rated at 28 MPG combined, a slight edge, while the Audi A4 quattro also achieves 28 MPG combined. The Mercedes-Benz C300 4MATIC is very closely aligned at 27 MPG combined.

These differences of 1-3 MPG are often negligible in real-world driving, meaning the purchase decision is more likely to hinge on styling, features, or brand preference. Buyers looking for less gas might consider a Lexus IS 300 AWD, which is similar at 22 city/31 highway, or the Lexus IS 350 AWD, which offers a punchier engine compared to the Cadillac but pays in fuel economy at a combined 22 MPG. For a broader look at Cadillac’s efficiency, explore all Cadillac fuel economy data.

Tips to maximize efficiency

Use the CT5’s drive modes. Select “Tour” mode for relaxed cruising and optimal fuel economy, especially on the highway. Sport mode is engaging, but it holds gears longer and uses more fuel. Choose your drive mode based on the driving conditions and your current priorities.

Maintain proper tire inflation. Properly inflated tires reduce rolling resistance, which directly improves fuel economy. Check your tire pressure regularly and inflate to the recommended pressure listed on the door jamb sticker. Even a few PSI below the recommended level can negatively impact MPG.

Avoid excessive idling. Leaving the engine running while stationary wastes fuel. If you’re waiting for more than a minute, turn off the engine. Modern cars are designed to restart quickly and efficiently.

Use cruise control on the highway. Maintaining a steady speed is more fuel-efficient than constantly accelerating and decelerating. Cruise control helps you maintain a consistent speed and minimize unnecessary fuel consumption. Learn more about CT5 MPG across all years.

Schedule regular maintenance. A well-maintained engine runs more efficiently. Follow the recommended maintenance schedule for oil changes, air filter replacements, and spark plug replacements. Addressing small issues promptly can prevent them from becoming larger, more fuel-intensive problems.