Subaru · 2021
Impreza 4-Door 2.0L 4-cyl
✓ EPA Verified
Regular Gasoline
Midsize Cars
All-Wheel Drive
City
28
MPG
Combined
32
MPG
Highway
36
MPG
Annual Fuel Cost
$1,350
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$800
saved per year
Class Comparison — Midsize Cars
Top 31%
Better than 69 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 32 MPG
This vehicle
32 MPG
Class average
35 MPG
Class lowest
13 MPG
EPA Energy & Environment Scores
7
Energy Score
Out of 10
7
GHG Score
Out of 10
281 lbs
Annual CO₂
g/mile tailpipe CO₂
No
Start-Stop
Not equipped
Vehicle Specifications
Engine2.0L 4-cyl
TransmissionAutomatic (AV-S7)
DriveAll-Wheel Drive
Fuel TypeRegular Gasoline
Vehicle ClassMidsize Cars
Engine DescSIDI
Start-StopNo
EPA Vehicle ID42722

32 MPG combined is a respectable number for the 2021 Subaru Impreza 4-Door with the 2.0L engine and automatic transmission. This figure balances fuel efficiency with the everyday practicality and all-weather confidence that defines this compact sedan. It’s not setting any records, but it’s important for buyers who prioritize long-term reliability and standard all-wheel drive over ultimate fuel savings.

City and highway performance

The Impreza’s EPA estimates break down to 28 MPG in the city and 36 MPG on the highway. The city figure is perhaps more telling than the highway number. The Impreza’s 2.0L engine, while dependable, isn’t brimming with low-end torque. Expect the continuously variable transmission (CVT) to hunt for the optimal ratio in stop-and-go traffic, which can sometimes result in a slightly sluggish feel. On the open road, the focus is economy. The CVT helps maintain a lower engine RPM, contributing to that 36 MPG highway figure. Buyers who frequently make long highway commutes or prioritize relaxed long-distance cruising will find this appealing.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2021 Subaru Impreza 4-Door 2.0L is $1,350. This figure is based on driving 15,000 miles per year and using national average fuel prices, which makes it easier to compare it directly to other vehicles. While fuel prices fluctuate, this gives potential buyers a benchmark for understanding the Impreza’s running costs.

Real-world expectations

EPA estimates provide a useful baseline, but real-world fuel economy always varies depending on driving habits, terrain, and climate. Aggressive acceleration, frequent short trips, and extended idling can all reduce your MPG. Gradual acceleration, anticipating traffic flow, and consistent highway speeds can help you achieve numbers closer to, or even slightly exceeding, the EPA estimates. Keeping your tires properly inflated and ensuring your car receives regular maintenance is also extremely important.

How it compares

The Impreza faces stiff competition in the compact sedan segment, and many rivals offer similar or even slightly better fuel economy in front-wheel-drive configurations. For example, a Toyota Corolla LE can achieve 38 MPG combined, while a Honda Civic LX is rated at 35 MPG combined. A Mazda3 with the base engine returns around 31 MPG combined, and the Nissan Sentra comes in at 33 MPG combined. What sets the Impreza apart, however, is its standard all-wheel drive. This feature inherently compromises fuel economy to provide added traction and stability in inclement weather. For buyers who live in areas with frequent snow or rain, or who simply value the added security of all-wheel drive, the Impreza’s fuel economy trade-off is a worthwhile compromise. You can check all Subaru fuel economy data for a range of models.

Tips to maximize efficiency

Anticipate traffic flow to minimize unnecessary braking and acceleration. The Impreza’s CVT is programmed for efficiency, so let it do its job by maintaining a steady foot on the accelerator. Avoid sudden bursts of speed, which force the engine to work harder and burn more fuel.

Proper tire inflation is critical for fuel economy. Check your tire pressure regularly and maintain it at the recommended level, typically found on a sticker inside the driver’s side doorjamb. Underinflated tires create more rolling resistance, which reduces fuel efficiency, and make sure that there isn’t too much weight in the vehicle’s cabin or trunk area.

Reduce idling time as much as possible. Even a few minutes of idling can consume a significant amount of fuel. If you’re waiting for someone or stopped for an extended period, turn off the engine. Modern engines are designed to be restarted without excessive wear and tear.

Consider using cruise control on the highway. This helps maintain a consistent speed, which can improve fuel economy. Avoid excessive speeding, as fuel consumption increases significantly at higher speeds. Using the air conditioning will reduce fuel economy, so use the fresh air setting when possible. Buyers shopping for IMPREZA MPG across all years should keep this in mind.