31 MPG combined is a respectable figure for the 2021 Subaru Impreza 5-Door 2.0L 4-cyl, and most owners consider that number an acceptable trade-off for the car’s standard all-wheel drive and practicality. This isn’t a hybrid focused on maximum efficiency; it’s a compact hatchback designed for snowy roads and weekend trips, bought by people who prioritize those features over getting every possible mile from a gallon of gas.

City and highway performance

The EPA estimates are 28 MPG in the city and 36 MPG on the highway for this Impreza configuration. The city number reflects fuel consumption in stop-and-go traffic, and the highway number indicates the potential when cruising at consistent speeds. However, the continuously variable transmission (CVT), while helping overall efficiency, can sometimes cause higher RPMs during highway acceleration, which can affect real-world highway fuel economy. Expect the best highway mileage on relatively flat roads and at moderate speeds; steeper hills or sustained speeds above 75 mph will likely decrease those numbers.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Subaru Impreza 5-Door 2.0L 4-cyl at $1,400. This is based on driving 15,000 miles per year and using national average fuel prices. This is only an estimate, and your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and gasoline prices in your area. Aggressive driving or frequent short trips, especially in colder climates, can easily increase your annual fuel spend.

Real-world expectations

EPA figures are a useful benchmark, but real-world fuel economy often differs. Impreza owners often report numbers slightly below the EPA combined estimate, usually in the 28-30 MPG range. Driving style, terrain, and weather conditions matter. Those living in mountainous regions, or often carrying passengers and cargo, will likely see lower numbers. Drivers with a gentle foot and primarily flat commutes might even exceed the EPA’s 31 MPG estimate. Compare data from different drivers at IMPREZA MPG across all years.

How it compares

The Impreza’s fuel economy is similar to other compact cars with available all-wheel drive, but it’s not the best. For example, the Mazda3 with all-wheel drive gets around 28 MPG combined, making it less fuel-efficient. The Nissan Kicks, only available with front-wheel drive, gets 33 MPG combined, which shows the fuel economy trade-off for all-weather capability. Even the Toyota Corolla Hatchback, a front-wheel drive competitor, gets around 32 MPG combined. A prospective Impreza buyer is choosing to sacrifice a small amount of fuel efficiency for the security of all-wheel drive, so it’s important to understand these trade-offs.

Tips to maximize efficiency

Proper tire inflation is critical for fuel economy in any vehicle, including the Impreza. Check the sticker on your driver’s side doorjamb for the recommended tire pressure, and check your tires regularly, especially when the temperature changes. Under-inflated tires increase rolling resistance, making the engine work harder and burn more fuel.

Watch traffic and avoid quick acceleration and hard braking. The Impreza’s CVT is designed to make the most of fuel efficiency, but it can’t overcome poor driving habits. Smooth and consistent driving will let the transmission work in its best range, improving mileage.

Minimize the use of air conditioning and heated seats when not needed. These add load to the engine, increasing fuel consumption. On shorter trips, consider rolling down the windows instead of using the AC.

Regular maintenance, including oil changes and air filter replacements, is important for good fuel economy. A clean air filter ensures the engine gets enough air, and fresh oil reduces friction and improves how the engine works. See your owner’s manual for the maintenance schedule.

Plan your routes to avoid traffic and idling, since idling wastes gas. Using navigation apps to avoid heavy traffic can save time and fuel. Beyond this Impreza, see all Subaru fuel economy data.