Cadillac · 2021
CT4 AWD 2.0L 4-cyl
✓ EPA Verified
Premium Gasoline
Compact Cars
All-Wheel Drive
City
23
MPG
Combined
26
MPG
Highway
32
MPG
Annual Fuel Cost
$2,250
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$100
more per year
Class Comparison — Compact Cars
Bottom 41%
Better than 41 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 26 MPG
This vehicle
26 MPG
Class average
33 MPG
Class lowest
12 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
343 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine2.0L 4-cyl
TransmissionAutomatic (S8)
DriveAll-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassCompact Cars
Engine DescSIDI
Start-StopYes
EPA Vehicle ID43241

The 2021 Cadillac CT4 AWD with the 2.0L turbo-four gets 26 MPG combined, which isn’t going to win any hypermiling contests, but that’s not the CT4’s mission. This is a compact luxury sedan aimed at buyers who want a stylish, comfortable, and dynamically engaging alternative. This configuration includes standard all-wheel drive, which adds weight and complexity, slightly impacting fuel efficiency. Buyers select the CT4 AWD for its confident handling in all weather conditions, and most are willing to accept the MPG trade-off for that added security and capability. It’s a calculated decision driven by practicality as much as style. They value the Cadillac brand and its commitment to a rewarding driving experience, even if it means not achieving top-tier fuel economy.

City and highway performance

The EPA estimates for the 2021 Cadillac CT4 AWD 2.0L are 23 MPG in the city and 32 MPG on the highway. The city figure reflects stop-and-go driving, idling, and lower average speeds, all of which put a greater strain on fuel consumption. The highway estimate benefits from steady speeds and less frequent acceleration and braking.

While 32 MPG on the highway is respectable for a luxury vehicle with all-wheel drive, these numbers are based on controlled testing. Your real-world results will vary depending on your driving style, road conditions, and even the weather. Aggressive acceleration, high speeds, and headwinds can all significantly reduce fuel economy.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2021 Cadillac CT4 AWD 2.0L is $2,250. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that this is just an estimate.

Your actual fuel costs will depend on how much you drive, the price of gas in your area, and your car’s actual fuel consumption. Drivers who primarily drive in the city or who frequently engage in spirited driving should expect to exceed this estimate. Conversely, those who do mostly highway driving and adopt a fuel-conscious driving style may find their actual costs are lower. While $2,250 isn’t exorbitant, it’s a factor to consider when budgeting for vehicle ownership, especially when compared to more fuel-efficient cars. You can research all Cadillac fuel economy data to get a wider view of how this figure fits within the brand.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world fuel economy often differs. The 2.0L turbo engine in the CT4 AWD requires a bit of throttle to deliver its performance, which can easily dip below the EPA estimates in city driving, especially during rush hour. Highway figures should be easier to match or even exceed if you maintain a consistent speed and avoid rapid acceleration. Factors like tire pressure, vehicle maintenance, and carrying extra cargo will all impact the gas mileage you ultimately see. Remember that the all-wheel drive system, while beneficial for traction, also carries extra weight and drivetrain losses that contribute to lower fuel economy compared to a similar rear-wheel drive model.

How it compares

The 2021 Cadillac CT4 AWD’s fuel economy places it in a competitive position within its segment. For example, the BMW 330i xDrive achieves an EPA combined rating of 28 MPG, slightly better than the CT4 AWD. The Mercedes-Benz C300 4MATIC also aims for 26 MPG combined. However, the Acura TLX 2.0T SH-AWD delivers around 24 MPG combined. Buyers often cross-shop these vehicles, weighing factors like performance, features, and brand prestige alongside fuel economy. Some might be willing to sacrifice a few MPG for the CT4 AWD’s distinctive Cadillac styling or the sharp handling characteristics. You can also compare CT4 MPG across all years to understand fuel economy trends for the model.

Tips to maximize efficiency

Regular maintenance is key to optimizing fuel economy in your CT4 AWD. Ensure that your tires are properly inflated and that you follow the recommended maintenance schedule for oil changes and other services. A well-maintained engine runs more efficiently and will deliver better gas mileage.

Avoid aggressive driving habits like rapid acceleration and hard braking. The CT4’s turbo engine responds well to smooth, controlled acceleration. Anticipate traffic flow and maintain a steady speed whenever possible to minimize fuel consumption.

Reduce unnecessary weight in the vehicle. Extra cargo in the trunk or passenger compartment adds load to the engine, requiring more fuel to maintain speed. Remove any items you don’t need to carry on a regular basis.

Minimize idling. If you anticipate stopping for more than a minute or two, turn off the engine. Idling consumes fuel without moving the vehicle, especially in colder weather when the engine must work harder to stay warm.

Use cruise control on the highway whenever conditions permit. Maintaining a consistent speed helps to optimize fuel efficiency on long trips. Cruise control minimizes unnecessary acceleration and deceleration, which can improve your highway MPG.