Are Subaru Outbacks good on fuel?

Yes, Subaru Outbacks are relatively fuel-efficient for a midsize all-wheel-drive wagon, especially with the base 2.5-liter engine; the EPA estimates place most AWD models at about 29 mpg combined (roughly 26 mpg city / 32 mpg highway).

Fuel economy matters for buyers who want practical cargo space, standard AWD and the ability to handle diverse road conditions without breaking the bank at the pump. This article breaks down official mpg by engine, examines real-world performance, and offers tips to maximize efficiency.

Engine options and their mpg

Two main engines power recent Outback models; here are the official EPA estimates for those configurations.

• 2.5-liter horizontally opposed four-cylinder engine (BOXER) with AWD and CVT: 26 mpg city, 32 mpg highway, 29 mpg combined.


• 2.4-liter turbocharged engine with AWD and CVT (available on higher trims): 23 mpg city, 30 mpg highway, 26 mpg combined.

In short, the base engine provides the best overall fuel economy, while the turbo adds substantial power at the cost of some efficiency.

Trade-offs between power and efficiency

The turbo engine shines in acceleration and towing capability, but its mpg typically lags the base engine in everyday driving. Heavy loads, off-road use, and high-speed driving can shorten efficiency further.

Real-world mileage and ownership costs

EPA figures are a helpful guide, but real-world mileage depends on terrain, climate, tires, and driving style. Here is what readers and reviewers commonly observe in mixed to highway conditions.

• Mixed driving (city and rural roads): roughly 24–30 mpg, with many drivers landing in the upper 20s depending on conditions and payload.


• Highway cruising: steady speeds on flat highways can yield around 32–34 mpg with the 2.5L engine, and somewhat less with the turbo due to higher load and intake temps.


• Annual fuel costs: with current gasoline prices and typical usage patterns (about 12,000–15,000 miles per year), fuel costs form a meaningful portion of ownership, varying by engine choice and local energy costs.

Real-world results align with EPA estimates: the base engine is the more economical choice for most daily driving, while the turbo option offers stronger performance at the pump for those who need it.

Factors affecting efficiency and tips to maximize mpg

Several practical factors influence fuel economy, from vehicle load to how you drive. Adopting a few habits can improve efficiency noticeably over time.

• Drive conservatively: smooth acceleration, gradual braking, and steady speeds help maximize mpg; use Eco or similar modes if available.


• Maintain proper tire pressure: keep tires inflated to the recommended pressure to reduce rolling resistance.


• Minimize drag: remove roof racks or bike carriers when not in use; a roof rack can lower highway mpg by a few miles per gallon.


• Keep the engine well-maintained: regular oil changes, air filter replacement, and spark plug maintenance support optimal combustion efficiency.


• Manage weight: remove unnecessary cargo; extra weight reduces mpg more on city driving than on steady highway trips.

With attentive driving and regular maintenance, Outback owners can approach the higher end of its EPA range and keep annual fuel costs in check.

Summary

The Subaru Outback offers competitive fuel economy within the midsize AWD wagon segment, particularly with the base 2.5L engine. The 2.4L turbo provides stronger performance at the expense of some efficiency, so the right choice depends on your priorities—fuel savings versus power and capability. For most buyers seeking a practical, capable wagon with reasonable running costs, the Outback represents a solid balance between performance and mpg.

Note: Figures can vary by model year and wheel/tire choices, and real-world mileage depends on many factors including drive patterns, climate, and payload. Always check the latest EPA ratings for your exact configuration.

What are the cons of a Subaru Outback?

Common Subaru Outback cons include the base engine being underpowered, a complicated or distracting infotainment system, overly sensitive safety features like the driver monitoring system, and potential reliability issues in older models (2010–2014, 2017–2020). Some owners also report uncomfortable seats and weak headlights.
 
This video discusses the pros and cons of the Subaru Outback, including engine power and infotainment: 1mCarLandTVYouTube · Oct 6, 2025
Performance and power

• The standard 2.5-liter engine can feel sluggish, especially when merging or driving uphill, potentially requiring an upgrade to the more powerful turbo engine. 
• The AWD system, while capable, adds weight and can impact fuel economy. 

Infotainment and electronics

• The infotainment system can be complicated and require stopping the car to adjust settings. 
• Some users find the large touchscreens unintuitive or difficult to read in direct sunlight. 
• Older models had issues with unreliable electronics and internal parts failing. 

Safety features

• The driver-monitoring system (eyeball watcher) is frequently cited as being overly sensitive and annoying, providing excessive warnings. 
• Other safety features, such as the automatic braking, can be too sensitive. 

Comfort and interior

• Some drivers find the driver's seats uncomfortable. 
• Interior materials can be prone to glare, and some models lack features like seat memory settings. 
• The headlights have been described as weak, particularly in rainy conditions. 

Reliability and maintenance

• Certain model years, particularly 2010–2014 and 2017–2020, are noted for issues like head gasket problems (though this is less of a concern in newer models), airbag defects, CVT transmission problems, and frequent windshield cracks. 
• AWD vehicles may require more frequent tire rotation and alignment compared to front-wheel-drive cars to ensure even tire wear. 

This video explains common Subaru failures, including head gasket issues in older models: 1mMrSubaru1387YouTube · Aug 11, 2024

Are Subaru Outbacks good for long distance driving?

No matter what your travel plans look like, maybe you're heading to the mountains, visiting friends and family across the state, or taking your kids to the beach, the Subaru Outback can be considered the perfect road trip vehicle. Why? Because it is built to handle just about any challenge you throw at it.

Is the Subaru Outback fuel efficient?

With an EPA-estimated gas mileage of up to 32 miles per gallon, the Subaru Outback ensures seamless travels around Flushing.

Why is my Subaru Outback using so much gas?

Issues with the fuel system, such as clogged fuel injectors, a dirty fuel filter, or a malfunctioning fuel pressure regulator, can contribute to high fuel consumption. Have your Subaru's fuel system inspected and serviced regularly to ensure proper operation and fuel efficiency.