A used Subaru Outback is one of the most distinctive and capable wagons on the American used market. With standard all-wheel drive, generous ground clearance and a reputation for going where crossovers fear to, it has a devoted following among buyers who want all-weather ability without a bulky SUV. But the Outback’s boxer engine has some specific weak points, and its CVT deserves a careful look, so a smart buyer checks the right things. Across the 2015-2024 span you will find prices from roughly $10,000 to $34,000 depending on year, engine, trim and mileage.

That capability does not make the Outback a single vehicle. Across these years you get the fifth generation (2015-2019) and the sixth generation (2020-2024, on the Subaru Global Platform), a 2.5-liter boxer four versus a turbocharged flat-four (the 2.4 XT on newer cars, or the older 3.6 six), and different eras of Subaru’s CVT. Each has its own things to check. This guide walks through the versions and what to inspect so you buy a good one.

Which generation to buy

The fifth-generation Outback (2015-2019) is a comfortable, proven wagon and now good value, though its 2.5 boxer is the engine most associated with oil consumption on some examples. The sixth-generation Outback (2020 onward) is roomier and more refined, with a revised 2.5 and the option of the punchy 2.4-liter turbo (XT), and is the better choice if the budget allows. Both come only with all-wheel drive.

Whatever the year, confirm the exact engine and trim against the VIN before you commit. A 2.5 and a 2.4 turbo XT are different in performance and in what to check. Verifying build and history from the VIN is covered in check a car by VIN and plate.

Boxer engines

2.5 boxer (oil consumption and head gaskets)

The core Outback engine is the 2.5-liter boxer (flat-four). It is durable overall, but two Subaru boxer traits deserve checking. First, some 2.5 engines (particularly certain years) have a reputation for oil consumption, sometimes enough to run low between changes. Check the oil level and condition on the dipstick, ask directly how much it uses, and be wary of a low or very dark level. Second, older Subaru boxers were historically prone to head-gasket weeping; while the FB25 in this era is much improved over earlier engines, still check for oil or coolant seepage around the block, a low coolant level, or a history of overheating. How a failing head gasket presents is in blown head gasket: symptoms and cost.

At the inspection, also confirm no coolant and oil mixing, steady temperature on the drive, and no exhaust smoke. An engine that drinks oil or shows head-gasket signs is a strong negotiating point or a walk-away depending on severity.

2.4 turbo (XT) and 3.6 six

The 2.4-liter turbo on newer XT models adds strong, effortless power. As a turbo it wants disciplined oil changes and a check for clean running with no blue smoke. The older 3.6-liter six (early fifth-gen) is smooth and avoids the turbo, though thirstier. Both are solid; check oil condition and smooth running.

The CVT and all-wheel drive

Every modern Outback uses a continuously variable transmission (CVT) paired with Subaru’s symmetrical all-wheel drive. Subaru’s CVT is generally durable, but test it: accelerate steadily and firmly and confirm smooth, seamless power with no shuddering, whining or hesitation. Ask for CVT fluid-service records. How a CVT behaves is covered in automatic transmission types: CVT, DSG and more.

Confirm the all-wheel-drive system is quiet and smooth, with no droning or binding when turning tightly at low speed and no warning lights. Because Outbacks are often used on trails and in snow, inspect the underside for damage and confirm the suspension is not tired.

Body, suspension and electronics

Outbacks are well built, but check the usual items. On older or salt-belt cars, inspect the rocker panels, wheel arches, subframe and brake lines for corrosion. Suspension takes a beating on rough roads; clunks over bumps are usually sway bar links, worn bushings or struts.

Other items:

Electronics - test the infotainment, backup camera, sensors and Subaru’s EyeSight driver aids (a windshield-mounted camera system); confirm EyeSight is not faulted.
Interior wear - Outbacks carry gear, dogs and families; check seat bolsters, cargo area and switches against the claimed mileage.
Wheel bearings - listen for a droning that changes with cornering, a known wear item on some Subarus.

A methodical pass over the paint and body with a thickness gauge, checking panel gaps and filler, catches an accident vehicle sold as clean. The full inspection order is in how to inspect a used car.

Used Outback price ranges

Prices vary by year, engine, trim and mileage, and the Outback holds value well. As a rough US-market guide:

2015-2017 Outback 2.5, 100,000-150,000 miles - most often $10,000-$16,000.
2018-2019 Outback Limited or 3.6R, moderate miles - typically $16,000-$23,000.
2021-2023 Outback, low miles, higher trim or XT turbo - usually $24,000-$34,000.

A vehicle priced far below the market is a warning sign, not a bargain: a hidden accident, a rolled-back odometer, a salvage title or an oil-burning engine. Verify the mileage against records, as explained in how many miles is too many.

What to watch for and the VIN checklist

Pulling it together into one Outback checklist:

Confirm the engine (2.5 vs 2.4 turbo XT vs 3.6 six) - all are AWD.
2.5 oil consumption - check the level and ask directly how much it uses.
Head gasket - look for oil or coolant seepage, a low coolant level or overheating history.
CVT - accelerate firmly and confirm smooth power with no shudder or whine; ask for fluid records.
Underside and wheel bearings - inspect for off-road damage and listen for bearing drone.
VIN history - Carfax or AutoCheck for accidents, title brands, owner count and odometer readings, plus an NMVTIS check for salvage or rebuilt status.

A VIN gives you the history a seller will not volunteer. Reading that report is covered in how to read a vehicle history report. If you are cross-shopping all-weather vehicles, see the used Toyota RAV4 guide and used Toyota Highlander guide.

How MotoPPI helps when buying an Outback

The boxer engine’s oil-consumption and head-gasket traits, plus the CVT, make homework especially valuable on the Outback. MotoPPI pulls the VIN history, walks you through a model-specific checklist (including the oil, cooling and CVT checks that matter most here), helps you measure paint thickness and read OBD codes, then builds a report that works as leverage in negotiation.

On a capable wagon that is often worked hard, that check is what keeps a rugged bargain from hiding an engine problem. The first check in the app is free, so it is worth starting there before you drive out.

FAQ

Is the Subaru Outback reliable?

It is generally solid, with two boxer-engine traits to check: oil consumption on some 2.5 engines and, on older units, potential head-gasket seepage. A car that checks out on oil and cooling, with a healthy CVT, is a dependable and capable buy.

Does the Outback 2.5 burn oil?

Some 2.5 boxer engines do, particularly certain years. Check the oil level and condition, ask the owner how much it uses between changes, and watch the level closely if you buy one.

Should I worry about Outback head gaskets?

The modern FB25 boxer is much improved over the older engines that made Subaru head gaskets infamous, but still check for oil or coolant seepage, a low coolant level and any overheating history.

How much does a used Outback cost?

Roughly $10,000 for an older high-mileage 2.5 up to about $34,000 for a clean, low-mileage recent higher trim or XT turbo. It holds value well thanks to strong demand for its all-weather ability.

Is the Outback good in snow?

Yes. Standard symmetrical all-wheel drive plus generous ground clearance make it one of the most capable all-weather wagons, which is a big part of why it holds value. Confirm the AWD and suspension are healthy on a used example.

Used Subaru Outback (2015-2024): what to check before buying