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2018 Subaru Impreza Engine: Power, Efficiency & Specs

The 2018 Subaru Impreza delivers a balanced mix of efficiency, all-weather capability, and everyday refinement. Its heart is a modern, horizontally opposed engine that pairs wit...

Mara Ellison Jul 24, 2026
2018 Subaru Impreza Engine: Power, Efficiency & Specs

The 2018 Subaru Impreza delivers a balanced mix of efficiency, all-weather capability, and everyday refinement. Its heart is a modern, horizontally opposed engine that pairs with either a manual or CVT, shaping how the car feels on daily drives and long trips.

Below is a snapshot of the 2018 Impreza powertrain lineup, key specifications, and what buyers should weigh when comparing trims.

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Trim Engine Drivetrain Transmission EPA City/Hwy MPG
Base 2.0-liter FB20 boxer FWD CVT 26 / 33
Premium 2.0-liter FB20 boxer FWD CVT 26 / 33
Limited 2.0-liter FB20 boxer AWD CVT 24 / 30
Touring 2.0-liter FB20 boxer AWD CVT 24 / 30

2018 Impreza Engine Lineup And Configuration

Across the 2018 model year, Subaru offered a single, refined powertrain choice for most buyers. The base, Premium, Limited, and Touring trims shared a 2.0-liter FB20 horizontally opposed engine, tuned for smooth power and efficient combustion. This design helps lower the center of gravity, aiding handling while keeping the cabin quiet and composed.

All-wheel drive became standard starting with the Limited and Touring trims, delivering confident traction in rain, snow, and on uneven roads. Buyers who preferred a more traditional feel could opt for the base or Premium trims with front-wheel drive and a manual transmission. The combination of boxer architecture and symmetrical all-wheel drive defines how the Impreza feels planted and responsive in everyday situations.

Under normal driving conditions, the 2018 Impre2018 Impre achieves strong fuel economy while maintaining adequate power for merging, passing, and highway cruising. The CVT used in these models provides seamless acceleration, reducing gear shifts around town. For drivers who value engagement, the available manual six-speed unit adds control and connection without sacrificing daily usability.

Fuel Efficiency And Real World Mileage

Fuel economy is one of the standout qualities of the 2018 Impreza. The 2.0-liter boxer is tuned for lean burn in certain conditions and benefits from Subaru’s efficient thermal management. In real-world testing, many owners report numbers that align closely with or slightly exceed the EPA estimates, especially for city driving with moderate traffic.

Compared with some compact sedans and crossovers, the Impreza’s aerodynamic design and low rolling resistance help it maintain competitive numbers. Drivers who choose the AWD version may see slightly lower mpg, but the difference is often justified by improved traction and confidence in variable weather. The result is a car that fits easily into a daily budget without feeling slow or strained on longer trips.

Driving Dynamics And Road Feedback

Handling is where the 2018 Impreza truly shines, thanks to its boxer engine layout and balanced weight distribution. The low, flat profile reduces inertia during cornering, so the car feels responsive yet composed when carving through urban streets or winding roads. Steering is precise but not overly sharp, giving drivers confidence without tiring them on long commutes.

Suspension tuning prioritizes composure over harshness, absorbing potholes and light bumps while maintaining tire contact with the road. During spirited driving, the car remains stable, with minimal body roll and predictable turn-in. Even in wet or lightly snowy conditions, the available all-weather tires and standard stability control help keep the powerplant’s output manageable and safe.

Reliability, Maintenance, And Long Term Ownership

Subaru has built a reputation for durability, and the 2018 Impreza generally continues that trend. The horizontally opposed engine design is inherently balanced, which can reduce wear on internal components when properly maintained. Regular oil changes, timely belt replacements, and attention to cooling system health contribute to a long lasting powertrain.

Owners often highlight the ease of finding replacement parts and the strong aftermarket support for tweaks and repairs. The compact dimensions make parking easier in tight city spaces, while the hatchback configuration simplifies loading groceries, luggage, or weekend gear. For many drivers, the blend of efficiency, capability, and low cost of ownership makes the 2018 Impreza a practical and satisfying choice.

Key Takeaways For Buyers

  • 2.0-liter FB20 boxer engine provides balanced performance and efficiency
  • Standard CVT ensures smooth acceleration and strong fuel economy
  • Manual transmission available on base and Premium trims for driver engagement
  • AWD standard on Limited and Touring, improving traction in various weather
  • Low center of gravity and well-tuned suspension enhance handling and comfort
  • Strong reliability record with straightforward maintenance requirements

FAQ

Reader questions

Does the 2018 Impreza come with a manual transmission option?

Yes, the 2018 Subaru Impreza offers a manual transmission on the base and Premium trims with front-wheel drive. The available six-speed manual provides engaging shifts and better driver control, though the CVT remains standard on most trims for optimized fuel economy.

How does the 2.0-liter boxer engine perform in everyday driving?

In daily use, the 2.0-liter FB20 boxer delivers smooth power with good midrange response, making city driving and highway merging comfortable. The horizontally opposed layout keeps the center of gravity low, which helps the car feel planted through corners and stable during extended drives.

Is the all-wheel drive system standard on higher trims only?

Yes, all-wheel drive is standard on the 2018 Impreza Limited and Touring trims, while the base and Premium trims typically offer front-wheel drive. The symmetrical layout enhances traction in rain, snow, and on loose surfaces, giving AWD models added confidence in challenging conditions.

What kind of fuel economy can I expect from the 2018 Impreza?

Most 2018 Impreza trims achieve in the mid to upper 20s in city driving and the low 30s on the highway, depending on driving style and weather. The combination of the efficient boxer engine, aerodynamic shape, and available CVT helps keep fuel costs lower than many compact rivals.

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