21 MPG combined won’t win any fuel efficiency awards, but it costs to own a 2023 Subaru WRX. This isn’t a vehicle purchased for hypermiling; it’s a performance machine that offers rally-inspired handling and turbocharged punch. The target buyer prioritizes driving engagement and all-weather capability over saving fuel, accepting that the trade-off for Subaru’s symmetrical all-wheel drive system and potent 2.4-liter engine will be more frequent trips to the gas station.

City and highway performance

The WRX’s EPA estimates break down to 19 MPG in the city and 25 MPG on the highway. In congested urban environments, expect the turbocharged engine to drink deeply when accelerating from stoplights, particularly if you’re enjoying the readily available power. The automatic transmission might offer slightly better observed city MPG than when engaging in “stop and go,” but it will be negligible. The highway figure of 25 MPG is more achievable, provided you resist the urge to frequently use the passing power afforded by the turbocharger. Maintaining a steady speed on longer journeys will yield the best results, but the WRX is naturally inclined to encourage a spirited driving style.

Annual fuel cost

The EPA estimates that the 2023 Subaru WRX automatic will cost $2,750 per year to fuel. This figure assumes driving 15,000 miles annually, using national average fuel prices. Keep in mind that premium fuel (91 octane or higher) is recommended for the WRX to achieve optimal performance and fuel economy, so the cost will vary depending on local fuel prices and driving habits.

Real-world expectations

While the EPA figures provide a baseline, real-world fuel economy will vary significantly based on driving style and conditions. Aggressive acceleration, frequent hard braking, and extended periods of idling will all negatively impact fuel consumption.

In more relaxed mixed driving, some owners report achieving figures close to or even slightly exceeding the EPA combined estimate. Consistently pushing the car harder will result in numbers closer to the city rating, or even lower. Don’t be surprised to see averages dip into the high teens if you frequently exploit the WRX’s performance capabilities.

How it compares

Compared to other performance-oriented cars in its class, the WRX’s fuel economy is a mixed bag. The Honda Civic Si, with its turbocharged 1.5-liter engine, achieves an EPA-estimated 31 MPG combined, significantly better than the WRX.

Volkswagen’s GTI delivers around 27 MPG combined, offering a more fuel-efficient sporty hatchback option, however, neither of those vehicles offer standard all-wheel drive. The WRX’s AWD system is one of its key differentiators and the reason for its lower MPG. All of the WRX competitors are front-wheel drive only. Looking elsewhere, the Acura Integra (particularly the A-Spec version), offers a similar blend of sporty driving dynamics and practicality, while achieving around 30 MPG combined. For all all Subaru fuel economy data, be sure to check out FuelEconomyHub.

Tips to maximize efficiency

Although the WRX isn’t designed to be a fuel sipper, there are strategies to optimize its fuel efficiency. One helpful place to start is comparing WRX MPG across all years.

Anticipate traffic flow and avoid sudden acceleration and braking. The WRX’s turbocharger is most active during acceleration, so smoother, more gradual inputs will minimize fuel consumption. Use cruise control on the highway to maintain a consistent speed and reduce unnecessary throttle adjustments. This is especially important with the automatic transmission, as it can sometimes hold lower gears for longer, leading to higher fuel consumption.

Ensure that your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended levels specified on the tire placard, but do not exceed the maximum pressure molded on the tire itself.

Reduce unnecessary weight. Extra cargo in the trunk, especially heavy items, increases the amount of energy required to accelerate and maintain speed. Remove any unnecessary items from your vehicle to reduce its overall weight and improve fuel efficiency.

Consider your driving mode. The WRX offers different driving modes that can affect fuel economy. “Intelligent” mode, if equipped, typically prioritizes fuel efficiency by adjusting throttle response and shift points. Experiment with different modes to see which one best suits your needs and driving conditions.