The Outback barely depreciates. A 2017 2.5i Premium stickered around $28,000 new and now sits near $11,500–$13,500, on a nearly flat curve — Subaru's cold-climate loyalty keeps demand high. You won't get one cheap, but the money you put in holds, which puts the weight on confirming this specific car is a clean example.
This is the fifth-generation Outback (2015–2019), the taller, more SUV-like wagon that cemented the model's mainstream success. The 2.5i pairs the FB25 boxer-four with the Lineartronic CVT and standard Symmetrical AWD. It shares its powertrain and traits with the same-era Forester and Legacy — including the FB25's oil-consumption tendency, which is the first thing to verify.
The 2.5L FB25 makes 175 horsepower and is a real improvement over the old EJ engines — timing-chain driven and free of the head-gasket reputation that haunted earlier Subarus. Its documented trait is oil consumption; the worst of it belonged to earlier FB cars, but a 2017 can still do it, so you verify rather than assume. The Lineartronic CVT is smooth and efficient and most are durable, but it's the single expensive component, so its health is what you confirm. Real-world economy runs 26–28 mpg combined; towing is rated at 2,700 pounds.
Two things carry real money, both inspectable. First, oil consumption — a severe burner means a ring or short-block job in the $3,000–$4,000 range, and importantly, the 8-year/100,000-mile oil-consumption warranty extension has now lapsed on time, so any remedy is out of pocket. Second, the CVT — a healthy one runs well past this mileage, but a failed or badly shuddering unit is a $5,000-plus replacement. Neither is a certainty on a well-kept car; they're the two questions a good inspection answers. Below those, the Starlink communication module's battery drain is a documented nuisance addressed by a software fix — confirm it was done.
The mechanical red flags are the two above — burning oil and an unhappy CVT — both detectable on the driveway and test drive. Beyond those, confirm the DCM battery-drain fix and check open recalls by VIN, including any Takata campaign. A car with a history of repeated dead batteries and no DCM fix is telling you something.
Cold first: pull the dipstick before startup, confirm full and clean oil, and ask directly how much oil it uses. On the drive, the CVT should be seamless — feel for shudder or flare and confirm prompt engagement from a stop. Cycle the AWD on a slow tight turn for binding, confirm all warning lights extinguish, and ask about battery history as the tell for the DCM issue.
At ~105,000 miles, plan for the next year or two: a CVT fluid service if undocumented (~$250–$400), spark plugs if not done (~$200–$300 on a boxer), a coolant flush if there's no record (~$120–$150), and brake fluid (~$100). Wheel bearings are a known wear item (~$300–$500 per corner). Front struts and bushings are the likely larger suspension item as it passes 105k.
Budget roughly $3,400 over three years at about 12,000 miles a year, assuming a car that passes its two conditions clean. That covers routine oil services (watching consumption), the CVT fluid service, spark plugs, one brake service, a likely wheel bearing or suspension item, and tires. It excludes fuel and insurance, and it explicitly excludes a CVT replacement or an oil-consumption engine repair — the outcomes the pre-purchase checks exist to rule out.
The buyer who wants dependable all-weather capability with wagon practicality and will spend one inspection confirming the engine isn't burning oil and the transmission is healthy. Get those confirmed and the Outback is one of the most sensible used vehicles in its class.
GOOD CAR — WITH CONDITIONS. This is a good wagon, and the two conditions are the only things standing between you and a solid purchase: confirm the FB25 isn't consuming oil beyond Subaru's threshold, and confirm the CVT shifts smoothly with no shudder — ideally with a documented fluid service behind it. Make both a written condition of the sale. If they come back clean, buy with confidence. If the oil consumption is real or the transmission shudders, that's a number you negotiate off the price using the cost summary above, or you walk. What makes this a good car rather than a gamble is that both risks are fully visible before you pay.