How much horsepower does a 2.5 L Forester have?

In most recent versions, the 2.5 L Forester makes about 182 horsepower; older models typically produced around 170 horsepower.

What the figure means for drivers

The horsepower rating indicates peak power the engine can deliver under proper testing conditions. For the Forester’s 2.5 L engine, most daily driving will feel more influenced by the engine’s torque curve and gearing, which determine acceleration in real-world use. Variations in markets, model years, and emissions configurations can cause small differences in the exact horsepower figure.

Current-generation horsepower

The latest 2.5 L engine in North American Foresters is rated at 182 horsepower with about 176 lb-ft of torque. This figure applies to most 2019–present models and can vary slightly by market and trim because of tuning or emission systems.

Engine and power figures by year range

Below is a concise snapshot of how power has trended in the 2.5 L Forester over time, noting that exact numbers can vary by market and edition.

• Recent generations (2019–present): approximately 182 horsepower, ~176 lb-ft of torque


• Earlier mainstream generations (around 2008–2018): typically about 170 horsepower, similar torque


• Early iterations (late 1990s–2000s): roughly 165–170 horsepower

Note: These figures refer to the naturally aspirated 2.5 L engine used in most Forester trims. Subaru’s high-performance or turbo variants use different engines and produce higher horsepower.

Historical context: how horsepower has evolved in the 2.5 L Forester

Across its history, the Forester’s 2.5 L powerplant has seen incremental improvements. Early models offered power in the mid-160s, with later generations approaching 170 hp. In the most recent updates, Subaru increased output to 182 hp to boost acceleration and highway performance while maintaining fuel efficiency and low-end torque for everyday driving.

Why the numbers vary by model year

horsepower can vary due to several factors, including:

• Engine tuning and ECU calibration for different markets


• Emission-control requirements that influence intake and exhaust flow


• Improvements in intake, exhaust, and internal components over generations


• Torque shaping for different transmission setups and fuel types

In practice, most drivers will notice the difference more in throttle response and torque delivery than in peak horsepower alone. The newer 2.5 L Forester tends to feel more responsive at mid-range RPMs, which helps in everyday driving scenarios such as merging and climbing hill grades.

Takeaways for potential buyers

If you’re shopping for a Forester with a 2.5 L engine, expect:

• Older models: around 170 horsepower, steady and reliable across trims


• Newer models: up to 182 horsepower for stronger acceleration


• Turbo/XT variants: use different engines with higher horsepower figures, not the standard 2.5 L engine

Always verify the exact horsepower specification for the specific model year and market you’re considering, since Subaru’s numbers can shift slightly with regional tuning and regulatory changes.

Summary

The 2.5 L Forester commonly delivers about 170 horsepower in older generations and 182 horsepower in the latest models. For precise figures, check the exact year, market, and trim of the vehicle you’re evaluating, as small variations can occur. The engine’s strength is often felt in mid-range responsiveness and torque delivery rather than peak horsepower alone.

What is the weakness of a Subaru Forester?

Oil Consumption
Many drivers have reported that they need to get their oil changed more frequently than they have had to in other cars. This is likely due to oil cracks or leaks in the camshaft and crankshaft seals as well as the oil pump seal.

Is the Subaru 2.5 a BOXER engine?

If you choose a new Subaru Forester or Outback model, you'll get a standard 2.5-liter four-cylinder Boxer engine with 182-horsepower and 176 pounds-feet of torque.

What is the life expectancy of a Subaru 2.5 engine?

A Subaru 2.5L engine typically has a lifespan of 200,000 to 300,000 miles when properly maintained. However, a known issue with certain model years (especially 1996-2012) is head gasket failure, which can lead to engine damage and premature failure if not addressed. Proper maintenance, including regular oil changes, is crucial for longevity. 
You can watch this video to learn about a common engine issue that can affect the lifespan of a Subaru engine: 1mScotty KilmerYouTube · Nov 4, 2022
Factors affecting engine life

• Head gasket issues: The EJ25 head gasket was a known problem in many 2.5L engines between 1996 and 2012. Failure could occur between 60,000 and 150,000 miles. Newer models have improved designs, but it's still a factor to be aware of, especially with older engines. 
• Maintenance: Regular maintenance, such as oil changes, fluid checks, and tune-ups, is the most critical factor in extending engine life. 
• Driving habits: Avoiding aggressive driving, sudden starts and stops, and driving within the speed limit can also help the engine last longer. 
• Tire care: Keeping tires properly inflated and rotating them regularly helps the entire vehicle, including the engine, last longer. 

Extending your engine's life

• Follow the maintenance schedule: Adhere strictly to the manufacturer's recommended service intervals for oil changes and other fluid services. 
• Address issues promptly: If you notice any signs of problems, such as overheating or oil leaks, have them diagnosed and repaired by a qualified mechanic immediately. This can prevent minor issues from becoming major engine-damaging ones. 
• Consider repairs: For engines with older head gasket designs, getting the head gaskets replaced proactively can be a worthwhile investment to ensure long-term reliability. 
• Drive responsibly: Avoid hard acceleration and harsh braking whenever possible. 

Is the Subaru 2.5 engine a good engine?

The Subaru 2.5L engine is generally considered a good, reliable engine, especially in its newer iterations. However, older models had a reputation for head gasket issues, which has been largely addressed in engines made after approximately 2010. While the 2.5L is a dependable engine for everyday use, some find its performance underwhelming for spirited driving, preferring the turbocharged models instead.
 
Reliability and known issues

• Older models (pre-2010): Had a higher incidence of head gasket failure due to factory defects. Proper maintenance, including regular fluid checks, is crucial. 
• Newer models: Have more durable gaskets and significantly improved reliability. Newer versions of the FB25 engine can have oil consumption issues, which is often linked to the PCV system and can be managed with proper maintenance. 
• Long-term potential: With proper maintenance, including regular oil changes and fluid checks, Subaru 2.5L engines can be very reliable and last for 200,000–300,000 miles or more. 

Performance and fuel economy

• Performance: The 2.5L is a capable engine for daily driving but is not considered powerful or "fun to drive". It lacks the performance of the turbocharged engines.
• Fuel Economy: Offers better fuel economy than the turbocharged versions. 

Important considerations

• CVT transmission: Some drivers have reported mixed results with the Continuously Variable Transmission (CVT) paired with the 2.5L engine. 
• Maintenance: Regular maintenance is key to maximizing the life of any Subaru engine. This is especially true for older models with a history of head gasket problems.