How many miles do Subaru Outbacks usually last?
Most Subaru Outbacks last around 200,000 miles or more with regular maintenance; many owners report 250,000–300,000 miles, and a few push past 350,000.
Longevity depends on model year, engine choice, and how well the vehicle is maintained. Subarus’ symmetrical all-wheel-drive system and boxer engines are built for durability, but earlier 2.5-liter engines had a reputation for head-gasket issues, and modern Outbacks rely on transmission and drivetrain components that reward timely maintenance.
Typical lifespan and what affects it
Durability varies based on design, maintenance, and usage. The following factors most commonly influence how long an Outback can run before major repairs are needed.
Core longevity drivers
- Maintenance habits: regular oil changes, fluid replacements, and prompt repairs.
- Engine and transmission design: boxer engine reliability and the condition of the CVT in newer models.
- Driving conditions: highway cruising tends to be gentler on components than frequent short trips or harsh off-road use.
- Climate and corrosion risk: road salt and humidity can accelerate underbody rust and component wear.
- Maintenance history: complete service records correlate with longer, more reliable lifespans.
In practice, well-maintained Outbacks commonly reach the 200,000-mile mark, with many hitting 250,000–300,000 miles. Some exceptionally cared-for examples exceed 350,000 miles, though that depends on a combination of engine, transmission, and chassis condition.
Maintenance to maximize longevity
Following Subaru’s recommended service schedule and addressing issues early is the best path to high mileage. The list below outlines routine practices that help keep an Outback running long-term.
Core maintenance tasks
- Oil and filter changes every 5,000–7,500 miles, or per the owner's manual, with synthetic oil often allowing longer intervals.
- Coolant replacement at the intervals specified by Subaru (commonly around 60,000 miles or 5 years).
- CVT transmission fluid changes by a qualified technician, typically around 60,000 miles or per manual.
- Spark plugs replaced at or around 100,000 miles, depending on the engine variant.
- Brake fluid replacement every 2–3 years; regular checks for pads, rotors, and calipers.
- Engine and cabin air filters replaced as recommended, usually every 15,000–30,000 miles.
- Periodic inspections of the suspension, brakes, steering, and underbody; address wear or leaks promptly.
- Rust prevention and underbody cleaning, especially in climates using road salt.
Sticking to these practices helps components stay reliable longer and reduces the risk of unexpected repairs as mileage climbs.
Buying a high-mileage Outback: what to check
When evaluating a used Outback with high mileage, prioritize documentation, prior repairs, and current condition. The checks below help you assess remaining life and potential risks.
Key checks for a high-mileage purchase
- Complete service history showing regular maintenance and timely repairs.
- Evidence of past head gasket issues, particularly on older 2.5L engines, and any cooling system concerns.
- CVT behavior: smooth acceleration with no shuddering, slipping, or unusual noises.
- Oil leaks around the engine or transmission areas.
- Rust on frame rails, floor pans, and underbody components; look for corrosion or oil-soaked areas that could indicate leaks.
- Suspension wear: worn bushings, leaking shocks, or excessive play.
- Overall engine performance: compression, idle smoothness, and consistent power delivery during a test drive.
Because maintenance history is crucial for high-mileage Subarus, a well-documented Outback with regular service generally offers more reliability than a low-mileage example with sparse records.
Bottom line
Subaru Outbacks are built to last, with a typical lifespan around 200,000 miles when properly maintained. Many owners reach 250,000–300,000 miles, and some exceed 350,000 with diligent care and timely repairs. The key is following the manufacturer’s service schedule, staying on top of CVT maintenance where applicable, and addressing issues early rather than waiting for symptoms to worsen.
Summary: The long life of a Subaru Outback hinges on consistent maintenance, prudent driving, and choosing a well-documented used example. With those habits, high mileage—indeed, the potential for well beyond 200,000 miles—becomes a realistic expectation for many owners.
