28 MPG combined is a practical figure for the 2018 Subaru Outback AWD 2.5L. It acknowledges that you’re buying an Outback not for maximum efficiency, but for its blend of utility, all-weather confidence, and longevity. This isn’t a hybrid designed for maximum mileage; it’s a tool designed to reliably transport families and their gear, often on roads less traveled, prioritizing function over fuel savings.

City and highway performance

The EPA estimates the 2018 Outback 2.5L gets 25 MPG in the city and 32 MPG on the highway. The city figure reflects the Outback’s need to haul around its all-wheel-drive system, even when you don’t need the traction. Its continuously variable transmission (CVT), branded as AV-S7 by Subaru, simulates seven gears to avoid the droning often associated with CVTs, helping optimize fuel use around town while providing smooth acceleration. On the highway, the CVT allows the engine to settle into lower RPMs, contributing to that 32 MPG figure, ideal for long road trips where Outbacks often find themselves.

Annual fuel cost

The EPA calculates that the average owner of a 2018 Subaru Outback 2.5L will spend $1,550 on fuel annually. This is based on driving 15,000 miles per year and using national average fuel prices. This figure is a benchmark for comparing running costs with other vehicles, demonstrating the financial implications of choosing all-wheel drive and the Outback’s particular combination of features.

Real-world expectations

While the EPA numbers provide a baseline, real-world fuel economy can vary according to driving style, terrain, and load. Outback owners who frequently carry heavy loads, navigate steep hills, or drive aggressively will likely see figures closer to the low 20s. Careful drivers who prioritize smooth acceleration and maintain consistent speeds can certainly meet or even slightly exceed the EPA estimates. The Outback is not particularly sensitive to driving style, but aggressive acceleration will always reduce fuel efficiency. Factors such as tire pressure and regular maintenance also play a crucial role in maintaining optimal mileage. Consider the OUTBACK MPG across all years for further insights.

How it compares

The 2018 Outback 2.5L AWD’s 28 MPG combined is competitive within its class, but direct comparisons require understanding the Outback’s unique position. A front-wheel-drive Honda CR-V, for instance, achieves 30 MPG combined, trading the Outback’s standard all-wheel drive for slightly improved efficiency. The Toyota RAV4 LE FWD nets around 26 MPG combined, sacrificing all-weather performance for fuel savings. The Subaru Forester 2.5i achieves 28 MPG Combined, similar to the Outback despite its boxier shape. For those considering a Subaru, reviewing all Subaru fuel economy data can bring additional clarity.

Tips to maximize efficiency

Avoid aggressive acceleration and braking. The Outback’s CVT is designed to keep the engine in its most efficient range, but rapid changes in speed force the transmission to adjust constantly, consuming more fuel. Smooth inputs are key to maximizing fuel economy.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder and burn more fuel. Check your tire pressure regularly and inflate them to the recommended PSI listed on the sticker inside the driver’s side door.

Minimize unnecessary weight. Carrying extra cargo increases the load on the engine, which translates to reduced fuel efficiency. Remove any unnecessary items from the vehicle to lighten the load.

Use cruise control on the highway. Maintaining a consistent speed minimizes fluctuations in engine RPM, resulting in improved fuel economy during long drives. Use cruise control whenever possible on relatively flat, straight roads.

Consider using the “Intelligent” (I) mode for everyday driving. This driving mode helps fuel efficiency, adjusting the throttle response and transmission mapping for a smoother, more economical driving experience. It’s a simple way to improve your Outback’s mileage without sacrificing too much performance.