The new Subaru Forester continues with a simplified engine lineup across its trim range. All gasoline models use a naturally aspirated SUBARU BOXER four-cylinder engine paired with a continuously variable transmission and standard Symmetrical All-Wheel Drive.
Standard Engine Configuration
All Subaru Forester gasoline trims use the same core engine.
Engine Type
- 2.5-litre SUBARU BOXER four-cylinder engine
- Naturally aspirated
- Horizontally opposed cylinder layout
- Direct fuel injection
Output
- 180 horsepower
- 241 Nm of torque
The horizontally opposed layout positions cylinders flat on either side of the crankshaft. This design lowers the centre of gravity and allows direct alignment with the transmission.
No turbocharged gasoline engine is offered in the Forester lineup.
Transmission Pairing
Every gasoline trim pairs the 2.5-litre engine with the Lineartronic continuously variable transmission (CVT).
Transmission Characteristics
- Continuously variable gear ratios
- Electronically controlled
- Manual mode with stepped ratio simulation
- Paddle shifters on select trims
The CVT adjusts engine speed to match driving conditions without fixed gear changes. In manual mode, preset ratios simulate gear shifts.
Symmetrical All-Wheel Drive Integration
All trims include Symmetrical All-Wheel Drive as standard equipment.
AWD Characteristics
- Full-time engagement
- Electronically controlled torque distribution
- Active Torque Management system
Torque distribution varies automatically based on traction conditions. The system uses a multi-plate transfer clutch to regulate power between front and rear axles.
Trim Structure and Engine Consistency
The Forester range includes multiple trims, such as:
- Convenience
- Touring
- Sport
- Limited
- Premier
- Wilderness
Despite differences in equipment and suspension tuning, the engine remains the same across these trims.
No trim offers a different displacement or turbocharged variant.
Forester Wilderness Engine Specification
The Forester Wilderness includes off-road-oriented features but uses the same engine.
Wilderness Engine Details
- 2.5-litre naturally aspirated BOXER engine
- 180 horsepower
- 241 Nm of torque
The Wilderness trim includes suspension and drivetrain adjustments for off-road use, but engine output remains unchanged.
Fuel Delivery System
The 2.5-litre engine uses direct fuel injection.
Injection System Elements
- High-pressure fuel pump
- Direct injector placement in combustion chamber
- Electronic fuel management
Direct injection allows fuel delivery directly into the cylinder rather than into the intake manifold.
Engine Construction and Layout
The SUBARU BOXER engine features:
- Aluminium alloy block
- Aluminium cylinder heads
- Dual overhead camshafts
- Four valves per cylinder
The horizontally opposed configuration balances piston movement on both sides of the crankshaft. This layout reduces vibration without the need for balance shafts.
Emissions and Efficiency Control
The engine includes emissions management components.
Key Systems
- Catalytic converter
- Electronic throttle control
- Variable valve timing
Variable valve timing adjusts intake and exhaust valve timing to support fuel efficiency and emissions performance.
Hybrid Availability
A hybrid variant is expected for the next-generation Forester. If a hybrid configuration becomes available in the latest model year, it would include an electrified system combined with a gasoline engine.
However, if not officially confirmed for this model year, only the 2.5-litre naturally aspirated engine applies across trims.
Performance Characteristics
The 2.5-litre engine provides:
- Linear throttle response
- Moderate torque at mid-range engine speeds
- Consistent power delivery across driving conditions
Because the engine is naturally aspirated, there is no turbocharger component. Power builds progressively with engine speed.
Drivetrain Coordination
The engine, CVT, and AWD system operate as an integrated drivetrain.
Coordination Features
- Electronic throttle mapping
- Transmission ratio adjustment
- Torque distribution monitoring
Drive modes on select trims may adjust throttle response and transmission behaviour. These modes do not change engine output.
Cooling and Lubrication Systems
The engine uses:
- Liquid cooling system
- Engine oil lubrication system
- Electronic temperature monitoring
These systems maintain consistent operating temperature under varied driving conditions.
Towing and Load Capability
Engine performance supports moderate towing capacity within manufacturer specifications.
Towing limits depend on trim and equipment, but engine configuration remains identical across gasoline trims.
Comparison Across Trims
Below is a summary of engine specifications across trims.
|
Trim |
Engine | Horsepower | Torque |
|
Convenience |
2.5L BOXER | 180 hp | 241 Nm |
|
Touring |
2.5L BOXER | 180 hp |
241 Nm |
|
Sport |
2.5L BOXER | 180 hp |
241 Nm |
|
Limited |
2.5L BOXER | 180 hp |
241 Nm |
| Premier | 2.5L BOXER | 180 hp |
241 Nm |
| Wilderness | 2.5L BOXER | 180 hp |
241 Nm |
No variation in displacement, forced induction, or output occurs between these trims.
Engine Reliability Structure
The naturally aspirated configuration avoids turbocharger components such as:
- Turbo housing
- Intercooler
- Boost control system
The simplified structure reduces mechanical complexity compared with turbocharged systems.
Maintenance Requirements
Routine maintenance includes:
- Engine oil and filter replacement
- Air filter inspection
- Spark plug replacement at specified intervals
- CVT fluid inspection
Maintenance schedules remain consistent across trims because the engine configuration does not change.
2026 Forester Engine Types
The Subaru Forester uses one primary gasoline engine type across all trims:
- 2.5-litre naturally aspirated SUBARU BOXER four-cylinder
- 180 horsepower
- 241 Nm of torque
- Paired with Lineartronic CVT
- Standard Symmetrical All-Wheel Drive
No turbocharged gasoline engine appears in the standard trim structure. Engine performance remains uniform regardless of trim level.
Questions and Answers
How many gasoline engine types are available in the 2026 Forester?
- One gasoline engine type is available across all trims.
What is the displacement of the Forester engine?
- The engine has a displacement of 2.5 litres.
Does any trim offer a turbocharged engine?
- No. All trims use a naturally aspirated engine.
What transmission pairs with the engine?
- The engine pairs with the Lineartronic continuously variable transmission.
Is engine output different in the Wilderness trim?
- No. The Wilderness trim uses the same 180-horsepower and 241 Nm engine as other trims.
*Disclaimer: Content contained in this post is for informational purposes only and may include features and options from US or internacional models. Please contact the dealership for more information or to confirm vehicle, feature availability.*
