Also worth reading: Best Used Subaru Models, Subaru Outback Buying Guide and Subaru Forester Buying Guide.
Short answer: Subaru's AWD system and boxer engines are unique in the mainstream market. Reliability is generally good — but two specific issues (head gasket failure on older 2.5L NA engines and oil consumption on 2011–2014 FB25 engines) define the buying conversation.
Bottom line: Subaru's AWD system and boxer engines are unique in the mainstream market.
Subaru ownership rewards a buyer who understands the platform. Verify head gasket history on EJ25 engines, verify oil consumption behavior on FB25 engines, and enjoy the AWD everywhere else.
Generations that have earned a strong long-term reputation.
| Model | Reliability | Maintenance | Verdict |
|---|---|---|---|
| Outback | 4.0/5 · Very good | 3.9/5 · Good | The 2015–2019 3.6R Outback is the safest used pick — naturally aspirated H6, no FB25 oil-consumptio… |
| Forester | 4.0/5 · Very good | 3.9/5 · Good | The 2019+ Forester is the safest used pick — updated FB25D engine, refined chassis, class-leading v… |
| Crosstrek | 4.1/5 · Very good | 4.1/5 · Very good | The 2018+ Crosstrek is the sweet spot — refined chassis, updated engine, mature CVT. Real-world fue… |
Not deal-breakers — but they reward a careful buyer.
Documented oil consumption from worn piston rings led to a class-action settlement. Some received short-block replacements. Verify oil consumption history and settlement participation.
External head gasket leaks on the naturally aspirated 2.5L are essentially a maintenance item at 120–150k. Not a reason to avoid — but budget for the repair.
Ringland failure on tuned or abused STIs is a known catastrophic risk. A stock, well-maintained STI is fine; a modified example needs an engine-out inspection.
Powertrains that have earned a bulletproof reputation.
Outback, Legacy, Tribeca. The naturally aspirated H6 avoids essentially every Subaru-specific engine issue.
Direct injection turbo. Much improved over EJ255 in stock form.
Modern turbo Subaru engine — still gathering long-term data but early signs are good.
Not deal-breakers — but they reward a careful buyer.
Piston ring oil consumption. Class-action settlement applied. Verify history.
External head gasket leaks are near-universal at high mileage. Serviceable but budget accordingly.
Ringland failure on tuned examples. Stock cars are generally fine.
Bring this list to your pre-purchase inspection.
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Subaru parts are moderately priced and independent specialists (especially in the Northeast and West Coast) know the boxer engines well. AWD service intervals are honest but non-negotiable — mismatched tire sizes destroy the differential.
The CVT deserves fluid service every 60k on turbo models. The 5-speed and 6-speed manuals are largely trouble-free.
A used Subaru is an excellent all-weather choice — if you understand the engine history. The important buying factors are:
Subaru's AWD system and boxer engines are unique in the mainstream market. Reliability is generally good — but two specific issues (head gasket failure on older 2.5L NA engines and oil consumption on 2011–2014 FB25 engines) define the buying conversation.
Well-maintained Subaru models routinely reach high mileage — the EZ36 (3.6L H6) is commonly good for 300k+ miles with records to back it up. Service history matters far more than the odometer reading.
Subaru parts are moderately priced and independent specialists (especially in the Northeast and West Coast) know the boxer engines well. AWD service intervals are honest but non-negotiable — mismatched tire sizes destroy the differential.
The outback, forester and WRX have the strongest long-term records in the Subaru lineup. Pair the right model with the right model year and you avoid most of the brand's known trouble spots.
A used Subaru is an excellent all-weather choice — if you understand the engine history. The important buying factors are:
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The Subaru models worth buying.
Full wagon/crossover buying guide.
Full compact crossover buying guide.
Full subcompact crossover buying guide.
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