21 MPG combined is the definitive statement for the 2025 Subaru WRX 2.4L 4-cyl with the automatic transmission, a figure that, on first glance, might seem unremarkable. Yet, for an all-wheel-drive, turbocharged sport compact designed from the ground up to deliver driving thrills and year-round accessibility, this number speaks volumes about its intended purpose and the priorities of its dedicated customer base. These are not buyers solely focused on stretching every gallon; they are individuals seeking genuine performance, strong all-weather capability, and the unique character that only a Subaru WRX can provide. They understand that the joy derived from its exceptional chassis dynamics and powerful boxer engine often comes with a slight premium at the pump, a trade-off they enthusiastically embrace.

City and highway performance

Breaking down the combined figure, the WRX achieves 18 MPG in city driving and 25 MPG on the highway. The city mpg is where the turbocharged 2.4-liter engine, mated to Subaru’s Sport Lineartronic CVT (AV-S8), does its most earnest work. Stop-and-go traffic, with its frequent accelerations and decelerations, inherently challenges any performance-oriented vehicle, and the WRX is no exception. Its all-wheel-drive system, while invaluable for traction, also adds a slight parasitic drag that contributes to the lower city figure. On the open road, the highway rating of 25 MPG is a more representative indicator of the engine’s efficiency under consistent load. Here, the CVT’s ability to keep the engine in its optimal rev range for cruising aids in maintaining respectable fuel consumption, especially when driven judiciously. Both numbers, however, perfectly align with the vehicle’s mission: delivering accessible performance without demanding a constant presence at the fuel pump, though it also won’t win any awards for outright frugality. To see how these numbers compare across the lineage, you can explore WRX MPG across all years.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 Subaru WRX 2.4L 4-cyl at $2,750. This figure is derived from a standardized calculation based on driving 15,000 miles per year, split between 45% highway and 55% city driving, and assuming national average fuel prices. It serves as a useful benchmark for potential owners, providing a tangible, albeit estimated, understanding of the yearly expense associated with fueling this particular vehicle. It’s crucial to remember that this is an estimate; individual driving habits, local fuel prices, and specific vehicle maintenance can all influence actual costs. However, it effectively communicates the operational cost from a fuel perspective, grounding the performance narrative in a practical economic reality for the everyday driver.

Real-world expectations

In the real world, the 2025 WRX’s fuel economy is highly dependent on the driver’s lead foot. This is a car that actively encourages spirited driving, and when its turbocharged 2.4-liter engine is consistently pushed, the 18/25/21 MPG figures will inevitably dip. Owners who frequently engage in aggressive acceleration, use the vehicle’s rally-bred AWD capabilities on challenging terrain, or spend significant time in heavy city traffic should anticipate numbers closer to the lower end, perhaps even slipping into the high teens. Conversely, disciplined drivers who prioritize smooth inputs, make liberal use of the adaptive cruise control on the highway, and avoid gratuitous boost pressure can reasonably expect to meet, or even slightly exceed, the EPA highway rating. The car’s character, with its precise steering and eager powertrain, is intrinsically tied to its fuel consumption; the more you exploit its dynamic capabilities, the more fuel it will demand. For additional numbers across the brand, you can view all Subaru fuel economy data on our site.

How it compares

When evaluating the 2025 WRX’s fuel economy, it’s essential to compare it against its direct competitors and understand the inherent trade-offs. The Honda Civic Si, for instance, offers a more modest 200 hp but achieves a superior 31 MPG combined (27 city/37 highway) with its manual transmission, a clear efficiency advantage but at the cost of outright power and AWD. The Civic Type R, with its similar performance focus, also surpasses the WRX at 24 MPG combined (22 city/28 highway), again with a manual, but it’s a front-wheel-drive machine lacking the WRX’s all-weather versatility. Perhaps the most direct rival in terms of AWD performance is the Toyota GR Corolla Morizo Edition, which, despite its higher performance output, manages 21 MPG combined (21 city/28 highway) – an impressive highway figure, but the city rating directly matches the WRX. The WRX distinguishes itself in balancing its 271 hp, standard all-wheel drive, and comfortable four-door practicality, making its 21 MPG combined a very reasonable compromise for those prioritizing year-round usability and a specific driving experience over peak efficiency. Buyers understand they’re not getting a Prius, but they’re also not getting a gas guzzler that demands constant refueling.

Tips to maximize efficiency

Maintain consistent, smooth throttle inputs. The turbocharged boxer engine is most efficient when not subjected to dramatic changes in boost pressure, gentle acceleration and deceleration keep the turbocharger from working overtime, making better use of every drop of fuel.

Keep your tires properly inflated to the manufacturer’s recommended pressures. Underinflated tires increase rolling resistance and force the engine to work harder, directly impacting your WRX’s fuel economy. Check them regularly, especially with temperature changes.

Plan your routes to avoid heavy traffic and unnecessary idling. The WRX’s 18 MPG city rating highlights how quickly fuel can be consumed while sitting still or moving slowly, so navigating around congestion whenever possible will yield noticeable benefits.

Use the Sport Lineartronic CVT’s manual mode judiciously. While it allows for more engaging driving, constantly holding lower gears at higher RPMs for spirited acceleration will burn fuel more rapidly than allowing the transmission to select the most efficient ratio for cruising.

Consider your driving style on the highway. While the WRX can easily cruise at high speeds, even a slight reduction in speed from, say, 80 mph to 70 mph can significantly improve your 25 MPG highway figure due to reduced aerodynamic drag.