29 MPG combined makes the 2026 Subaru Impreza 2.5L 4-cyl a sensible choice for buyers who demand all-weather capability and Subaru’s symmetrical all-wheel drive without punishing their wallet at the pump. This isn’t a stripped-down economy car; it’s a capable compact, refined and spacious for its class, attracting diverse buyers from recent college graduates to empty nesters who appreciate its blend of practicality, safety, and subtle outdoorsy appeal. These buyers understand that Impreza’s mission isn’t outright speed, but predictable, reliable transport in any condition, and they accept its fuel economy as a fair trade-off for its inherent advantages over two-wheel-drive competitors.

City and highway performance

The Impreza’s 2.5L 4-cylinder engine, paired with its intelligent automatic transmission (AV-S8), delivers a well-balanced distribution of power and efficiency, proving Subaru has refined its powertrain offerings in this latest iteration. In city driving, the Impreza achieves 26 MPG. This figure reflects the demands of urban commutes, stop-and-go traffic, frequent acceleration and braking, and the continuous power distribution of the all-wheel-drive system. On the open highway, the Impreza truly shines, reaching 33 MPG. This highway efficiency is particularly noteworthy, enabling longer road trips with fewer fuel stops, a key consideration for the active lifestyle buyers that gravitate towards Subaru. The continuously variable nature of the AV-S8 transmission plays a significant role here, keeping the engine in its most efficient rev range during sustained cruising, directly contributing to that solid highway number.

Annual fuel cost

The EPA estimates the 2026 Subaru Impreza 2.5L 4-cyl will cost its owner approximately $1,500 in fuel annually. This figure is calculated based on a national average fuel price and an assumed driving distance of 15,000 miles per year, split between city and highway driving. For the typical Impreza owner, $1,500 serves as a transparent benchmark for budgeting their routine operating expenses. It’s a competitive figure in its segment, especially when considering the added complexity and efficiency demands of standard all-wheel drive, a feature often optional or unavailable on competitors that might claim marginally better two-wheel-drive numbers. This predictable cost reinforces the Impreza’s image as a dependable, budget-friendly vehicle over its lifespan.

Real-world expectations

While the EPA numbers provide an excellent baseline, real-world fuel economy for the 2026 Impreza 2.5L 4-cyl can fluctuate based on numerous factors. Aggressive driving habits, heavy loads, frequent short trips, or consistent use of hilly terrain will naturally affect efficiency. Conversely, a driver who practices smooth acceleration, anticipates traffic, and maintains consistent highway speeds will likely meet or even slightly exceed the EPA estimates. The Impreza’s character encourages a calmer driving style, which inherently benefits fuel economy. Its all-wheel-drive system, while always active, is not a significant detriment to everyday efficiency in its modern iteration. Owners consistently report satisfaction with the practical fuel economy achieved, understanding that the all-weather confidence is a valuable perk that justifies the numbers. For a truly detailed look at IMPREZA MPG across all years, our database offers detailed breakdowns.

How it compares

The 2026 Subaru Impreza 2.5L 4-cyl holds its own remarkably well in a fiercely competitive compact segment, especially when its standard all-wheel drive is factored into the equation. A key rival, the Honda Civic Hatchback with its 2.0L non-turbo engine and CVT, typically achieves around 33 MPG combined for its front-wheel-drive configuration. The Mazda3 Hatchback, another strong contender with its 2.5L engine and automatic (and available AWD), usually lands in the 30-31 MPG combined range when equipped with AWD. The Toyota Corolla Hatchback, with its 2.0L engine and CVT, pushes efficiency higher at around 35 MPG combined, but remains front-wheel drive only. Buyers who prioritize AWD will see the Impreza’s 29 MPG combined as highly competitive; it’s sacrificing only a few MPG points compared to its front-wheel-drive counterparts and often beating AWD-equipped rivals. This buyer isn’t seeking the absolute highest MPG, but rather the highest MPG for a compact with genuine, always-on all-wheel drive. For more detailed comparisons across the entire brand, explore all Subaru fuel economy data.

Tips to maximize efficiency

Maintain consistent tire pressure: The Impreza’s tires are critical for both its all-wheel-drive performance and fuel economy. Regularly checking and adjusting pressure to the manufacturer’s specification minimizes rolling resistance, directly translating to better MPG.

Practice smooth acceleration and braking: The AV-S8 transmission is designed for efficiency, but aggressive inputs will force it out of its optimal range. Gradual acceleration and anticipating stops will allow the CVT to operate more effectively, conserving fuel.

Minimize unnecessary weight: While the Impreza is a practical vehicle, carrying around heavy, unused items decreases fuel economy. Remove items like roof racks when not in use and keep the trunk clear of excess ballast.

Use cruise control on highways: The 33 MPG highway rating is achievable by maintaining a steady speed. Cruise control helps prevent speed fluctuations that waste fuel, especially on long, flat stretches.

Regularly service your Impreza: Keeping up with scheduled maintenance, particularly oil changes and air filter replacements, ensures the 2.5L engine operates at peak efficiency. A well-maintained engine is a fuel-efficient engine.