Are subarus known for engine problems?

No—Subarus are not inherently prone to engine failures. However, certain generations have earned reputations for specific issues, notably head gasket failures on older 2.5-liter engines and some oil‑consumption concerns, while newer FA/FB engines have improved reliability.

Historical trouble spots and what they mean for owners

The following items summarize issues that have affected engine reliability across Subaru’s lineup, with emphasis on how they have shaped owner experiences over time.

• Head gasket failures on older EJ-series 2.5-liter engines were common in late 1990s to mid-2000s models, often causing coolant or oil leaks and costly repairs.


• Oil consumption and piston‑ring wear in certain 2.0–2.5-liter non-turbo engines, particularly around the 2008–2011 period, led to higher oil-top-off frequency for some owners.


• Turbo variants, especially in performance models, experienced higher stress on components, which could magnify maintenance needs and sensitivity to service quality.

In the modern era, Subaru shifted toward the FA/FB engine family, with design refinements aimed at reducing head gasket risk and improving oil control. Maintenance remains the key factor in reliability.

Modern engines and reliability metrics

To understand current expectations, this section reviews how the latest engines compare and what independent measurements say about long-term reliability.

• The contemporary FA/FB engine family (2.0L and 2.5L variants used across numerous models) includes redesigns that address earlier head gasket vulnerabilities and improve oil management, cooling, and durability.


• Independent reliability surveys and consumer reports generally place Subaru in the average-to-above-average range for reliability in recent years, with variation by model year and drivetrain configuration. Regular maintenance remains a decisive factor.


• Common modern concerns include oil consumption in some high-mileage or high-performance variants and occasional transmission or drivetrain issues in specific models, though these are not universal and tend to be year- and trim-specific.

Prospective buyers should review model-year reliability notes, recall histories, and the service records of any used Subaru to assess risk more accurately than brand-wide impressions alone.

Standout models and years to watch

Owner communities and long-term reviews frequently discuss particular generations for their strengths and weaknesses. The following highlights reflect those conversations and official recall histories as of today.

• Late-1990s to early-2000s EJ2.5 engines in legacy and early Impreza/Outback lines are the classic head gasket risk group.


• Early-to-mid-2010s 2.5L non-turbo engines showed oil consumption questions in certain production years, often tied to refinements implemented mid-generation.


• Post-2015 FA/FB engines generally exhibit improved reliability, with fewer widespread engine-related failures, though oil consumption can occur in some high-mileage examples.

Note: Individual experiences vary, and regular maintenance—including timely coolant changes, oil changes with correct viscosity, and promptly addressing leaks—plays a large role in longevity.

Maintenance tips to minimize engine problems

These practical steps help reduce risk and extend engine life across Subaru models.

• Follow the OEM maintenance schedule for your specific engine family (EJ, FA, or FB), with particular emphasis on cooling-system upkeep and oil-change intervals.


• Use high-quality oil and the viscosity recommended by Subaru for your engine; using subpar oil or delaying changes can accelerate wear, especially in turbo or high-load applications.


• Monitor for signs of head gasket issues (unexpected coolant loss, white exhaust, milky oil) and have any suspected leaks checked promptly.


• Maintain the cooling system in good condition; replace hoses and the radiator cap as needed and address overheating promptly to protect the head gasket and engine.


• Keep thorough service records and ensure any recalls or service campaigns are completed by a dealer or qualified shop.

Bottom-line maintenance and proactive care are the best defenses against engine problems, regardless of model year.

Bottom line and context for buyers

In sum, Subarus are not inherently prone to engine failures, but certain model years—most notably the EJ-series 2.5L era—have well-documented head gasket risks and occasional oil‑consumption issues. The transition to FA/FB engines brought meaningful reliability improvements, and with diligent maintenance, modern Subarus perform competitively in their class. When buying used, prioritize a full service history, model-year reliability notes, and any open recalls to gauge risk accurately.

Summary

Subarus can be dependable vehicles when properly cared for. Historical engine problems were concentrated in older EJ-series 2.5L engines, particularly head gasket failures, and some oil-consumption episodes in various 2.0–2.5L engines. Modern FA/FB engines have addressed many of these concerns, offering improved reliability. Regular maintenance, prompt repairs, and attention to recalls are the best tools for ensuring long engine life in a Subaru.

What is the most common problem in Subarus?

The most common Subaru problems include head gasket leaks, particularly in older EJ-series engines, and continuous variable transmission (CVT) issues, especially with specific model years. Other frequent complaints involve excessive engine oil consumption, suspension wear, and various electrical issues, including faulty sensors and alternators. Proper maintenance is crucial for mitigating many of these potential problems. 
Engine and mechanical issues

• Head Gasket Leaks: A notorious issue in older Subaru models (especially those with EJ-series engines), often caused by cooling system problems. 
• Engine Oil Consumption: Certain models are prone to using excessive oil, which can stem from issues like worn piston rings or valve seals, and if left unaddressed, can lead to engine damage. 
• CVT Transmission Problems: Some Subarus have experienced issues with their continuously variable transmissions, including delays and slipping, particularly in certain years from 2010-2015. 
• Suspension Wear: Suspension components can wear out over time, leading to noise, vibration, and poor handling. 

This video explains common Subaru engine and transmission issues: 58sThe OCD RepairmanYouTube · Jul 7, 2025
Electrical and other problems

• Electrical Issues: Common electrical problems include faulty sensors, alternators, and starters.
• Front O2 Sensor: A specific front oxygen sensor issue has led to recalls and check engine lights in some models.
• Check Engine Light: Can be triggered by various issues, such as failed catalytic converters or knock sensors. 

Key takeaways

• Maintenance is crucial: Regular maintenance, including oil changes and fluid checks, is essential to prevent many of these issues and extend the life of your Subaru. 
• Older models: Many of the most severe problems, such as head gasket failures, were more common in older models and certain engine series. 
• Model year matters: Some issues are specific to certain model years. For example, specific years of the Crosstrek, Forester, and Outback had documented CVT problems. 

Are there problems with Subaru engines?

Head Gasket Leaks
One of the most notorious issues plaguing Subaru vehicles is head gasket leaks, particularly in older models with the EJ series engines. These leaks can lead to coolant loss, overheating, and potential engine damage if left untreated.

Are Subaru engines long lasting?

Engine Lifespan: Subaru engines are known for their durability and longevity, with many drivers reporting engines that last well beyond 200,000 miles with proper maintenance. The key to extending the lifespan of your Subaru engine is regular maintenance, including oil changes, fluid checks, and tune-ups.

Does Subaru make a good engine?

Subaru engines are known for their reliability, but feature several recurring problems across various models and years of production. These problems are often identified by a ticking or grinding engine sound.