30 MPG combined is respectable for the 2018 Subaru Impreza Sport 5-Door 2.0L 4-cyl, but that’s not the only reason to buy it. This isn’t a car solely purchased for outright thrift. It’s a pragmatic choice, driven by a desire for dependability, safety, and all-weather confidence. Buyers willingly accept this fuel economy as part of the deal when they prioritize the benefits of Subaru’s symmetrical all-wheel-drive system above all else.

City and highway performance

The EPA estimates of 27 MPG in the city and 35 MPG on the highway reveal the Impreza’s strengths and weaknesses. City driving, with its stop-and-go nature, isn’t the Impreza’s best environment. The 2.0L engine needs to work harder, and the all-wheel-drive system adds a small amount of parasitic loss. It’s on the open road, where the engine settles into a more efficient rhythm, that the Impreza shines. The continuously variable transmission (CVT) is programmed to keep the engine at optimal RPMs for cruising, contributing to the higher highway number. This makes it a decent long-distance commuter, especially for those who regularly face inclement weather.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Subaru Impreza Sport 5-Door at $1,450. This calculation is based on driving 15,000 miles per year and using the national average fuel price at the time of testing. Keep in mind that your actual fuel costs will vary depending on your driving habits, the type of driving you do, and local fuel prices. However, the $1,450 estimate provides a reasonable benchmark for comparison against other vehicles in this class.

Real-world expectations

While the EPA provides a standardized test cycle, real-world fuel economy often differs. Some Impreza owners report figures slightly below the 30 MPG combined rating, particularly in areas with hilly terrain or congested traffic. Aggressive driving, frequent short trips, and cold weather can all negatively impact fuel efficiency. However, some owners also report matching or exceeding the EPA estimates with careful driving habits and proper maintenance. Ultimately, achieving the advertised fuel economy requires a conscious effort to drive efficiently.

How it compares

The 2018 Impreza Sport 5-Door competes against a crowded field of compact cars. The Honda Civic Hatchback, particularly its LX trim, achieves an EPA-estimated 31 MPG combined. The Toyota Corolla Hatchback boasts a similar 32 MPG combined. The Mazda3 Hatchback, with its Skyactiv-G engine, often delivers real-world fuel economy close to its EPA rating of 31 MPG combined. While these competitors offer slightly better fuel economy numbers, they lack the standard all-wheel-drive that is one of the core reasons consumers shop for an Impreza. For buyers who need that grip and stability, the minor fuel economy penalty is a worthwhile tradeoff. You can view all Subaru fuel economy data on our site.

Tips to maximize efficiency

Gentle acceleration and anticipation are key to maximizing fuel economy in the Impreza. Avoid sudden bursts of speed and try to maintain a steady pace. Pay attention to traffic flow and anticipate stops to minimize braking. The CVT responds well to a light foot, maximizing efficiency as long as you’re not flooring it.

Regular maintenance is crucial for optimal fuel efficiency. Keep your tires properly inflated to the recommended pressure. Ensure that your engine is properly tuned and that the air filter is clean. Address any maintenance issues promptly, as they can negatively impact fuel economy.

Minimize idling. Modern engines are designed to be efficient when running, but idling burns fuel without moving the car. If you’re going to be stopped for more than a minute or two, turn off the engine. This is especially important in the city, where you’re more likely to encounter prolonged stops, or during winter.

Consider your cargo. Extra weight reduces fuel economy, so remove any unnecessary items from your vehicle. Roof racks and cargo carriers also increase drag and reduce fuel efficiency. Remove them when they’re not in use. Taking these steps while driving in your IMPREZA MPG across all years should improve.