32 MPG combined is an honest number for the 2018 Subaru Impreza 4-Door 2.0L 4-cyl. This isn’t a hybrid promising astronomical figures. It’s a compact sedan engineered for all-weather confidence and everyday practicality. Buyers choose the Impreza knowing they’re sacrificing a few MPGs for the security of standard all-wheel drive, a feature highly valued in regions where snow and ice are regular realities.

City and highway performance

The Impreza’s fuel economy breaks down to 28 MPG in the city and 38 MPG on the highway. The lower city figure reflects stop-and-go driving, which naturally impacts any vehicle’s efficiency. Highway driving allows the 2.0L engine to settle into its most efficient range, assisted by the continuously variable transmission (CVT), Subaru calls it AV-S7. While some drivers find CVTs uninspiring from a performance perspective, they undoubtedly contribute to maximizing fuel economy at cruising speeds. The engine, while adequate, isn’t a powerhouse, so aggressive acceleration will take its toll and drag down those highway figures considerably.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Subaru Impreza 4-Door 2.0L 4-cyl at $1,350. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that your actual fuel costs will vary based on your driving habits, the type of roads you typically drive, and the price of gasoline in your area. Regular maintenance, like tire inflation and oil changes, also contributes significantly to achieving that $1,350 figure.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy often deviates slightly. Expect to see numbers close to the EPA estimates if you drive conservatively and maintain your vehicle properly. However, aggressive acceleration, frequent short trips in cold weather, and carrying heavy loads will decrease your MPG. Many owners see figures fluctuating around the 30 MPG mark in combined driving, slightly below the official rating, but still respectable given the constant engagement of the all-wheel drive system.

How it compares

Compared to front-wheel drive competitors in the compact sedan class, the Impreza’s fuel economy faces some challenges. A 2018 Toyota Corolla LE, for example, achieves an EPA-rated 32 MPG combined, and the Honda Civic LX also hits 33 MPG combined. These cars offer better MPG on paper. But the Impreza buyer prioritizes all-wheel drive over ultimate fuel savings. However, when considering other AWD vehicles, the Impreza fares well. The Mazda3 i-ACTIV AWD also manages around 30 MPG combined, making the Impreza a strong contender in its class.

Tips to maximize efficiency

Gentle acceleration greatly impacts fuel efficiency in the Impreza. The 2.0L engine works best when you smoothly increase speed, gradually reaching your desired cruising velocity instead of flooring whenever possible. Fast launches and aggressive overtaking consume more fuel than necessary, so adopting a smoother driving style can noticeably improve your MPG, especially in city driving where this is particularly noticeable.

Proper tire inflation is essential for optimal fuel economy. Regularly check your tires and ensure they’re inflated to the recommended pressure, typically found on a sticker inside the driver’s side doorjamb. Underinflated tires increase rolling resistance, which can reduce your MPG by a noticeable margin. Properly inflated tires not only contribute to better fuel economy, they also extend tire life and enhance handling.

Minimize the use of accessories like air conditioning, particularly during short trips. The A/C compressor puts a significant strain on the engine, reducing fuel economy depending on the car’s engine. Open your windows when the weather is nice and save the A/C for when you need it but don’t sacrifice it for safety if conditions dictate, but it will reduce fuel economy if you run it full blast more than necessary.

Consider the weight you’re carrying in the vehicle. Remove any unnecessary items from the trunk and back seat. Excess weight reduces fuel economy, especially during acceleration and hill climbs. Carrying around tools or items you don’t need adds unnecessary strain to the engine, and can affect the fuel tank to a low level as well as performance.

Staying on top of regular maintenance, such as oil changes and air filter replacements, will help maintain proper engine efficiency. A well-maintained engine runs more smoothly and efficiently, improving overall fuel economy. Refer to your owner’s manual for the recommended maintenance schedule and be sure to adhere to it to keep your Impreza running at its best and getting optimal MPG. Be sure to also review all all Subaru fuel economy data, or to look at IMPREZA MPG across all years so that you have a good understanding of the vehicle.