Used Subaru Buying Guide: Models to Buy and Avoid

A used Subaru is a polarizing buy. Great all-wheel drive comes standard on every model, but head gaskets and CVT transmissions have cost owners thousands in surprise repairs. That combination makes Subaru one of the most debated brands on the used market.

RepairPal gives Subaru a 3.5 out of 5 reliability rating, with $617 per year in average repair costs. That’s only $35 below the industry average. Not the bulletproof reputation some Subaru fans claim.

This guide breaks down the best used Subaru models worth buying, the years to skip entirely, which engines hold up, and what a used Subaru actually costs to own. I’ll also compare Subaru to Mazda and give you my pre-purchase checklist.

Are Used Subarus Reliable?

Subaru earns a 3.5 out of 5 reliability rating from RepairPal, with an average annual repair cost of $617. The numbers tell a mixed story. Cheap repairs overall, but certain model years carry expensive engine and transmission risks.

I’ve seen this play out dozens of times at the lot. A well-maintained 2017 Forester runs for years without drama. A neglected 2005 Outback shows up trailing coolant smell. Same brand, completely different ownership experience.

The 0.3x repair frequency is genuinely impressive. Subarus don’t break often. The catch is that when they do break, certain failures — head gaskets and CVT replacements — hit hard.

What Makes Subaru Different from Other Brands?

Subaru is the only mainstream brand that makes every single model with standard all-wheel drive. Toyota, Honda, Mazda — they all charge extra for AWD or limit it to certain trims. Subaru doesn’t.

That Symmetrical AWD system splits power evenly between front and rear wheels. It’s not a reactive system that kicks in after you lose traction. Power goes to all four wheels all the time.

The horizontally opposed Boxer engine sits lower in the chassis than a conventional inline engine. Lower center of gravity means better stability in corners and crosswinds. Physics, not marketing.

One AWD-specific rule catches new Subaru owners off guard. All four tires must match in tread depth. A mismatch puts stress on the center differential, and replacing that costs $1,500 to $3,000. Lose one tire to a nail, you might need four new ones.

What Are the Most Common Subaru Problems?

Subaru has recurring issues — and some of them are expensive. The two dominant narratives in the used Subaru world are head gasket failures and CVT problems. Both deserve serious attention before you buy.

I found a 2008 Outback with 95,000 miles listed at $6,500. Great AWD for Colorado winters. Had the head gaskets tested — slight external leak already showing. My mechanic estimated $2,200 to fix. That sweet smell of coolant on a hot engine is the first sign gaskets are weeping. Budget $2,000 to $3,000 for head gaskets on any 2000-2010 EJ25.

The EJ25 head gasket problem isn’t a rare defect. It’s a design weakness in the engine. External leaks eventually become internal leaks, mixing coolant with oil. By then, the engine is toast.

What Are the Best Used Subaru Models to Buy?

Three categories matter for used Subaru buyers: SUVs and crossovers, sedans, and the WRX performance line. Each segment has clear winners and years to target.

Which Used Subaru SUVs and Crossovers Are Worth Buying?

Subaru Forester (2016-2019, 2020+)

The Forester is Subaru’s best-selling model for a reason. Spacious interior, great visibility, and real off-road capability for a crossover. Target 2016 and newer to dodge both the head gasket era and the worst CVT years. Check the full breakdown of best and worst Forester years and Subaru Forester years to avoid before shopping.

Skip 2014-2015. Those first-generation CVTs had the highest shudder complaint rates.

Subaru Outback (2016-2019, 2020+)

The Outback sits in a unique space — wagon ride height with SUV ground clearance. It handles highway driving better than most crossovers because it’s built on a car platform, not a truck frame. The 2015-2019 generation with the FB25 engine is a solid pick after the oil consumption fixes. See best and worst Outback years and Subaru Outback years to avoid for the full picture.

Subaru Crosstrek (2016-2018, 2019+)

Depreciation data makes the Crosstrek stand out. Only 25-30% value loss at five years — best in its class. That means you pay more upfront on the used market, but you lose less when you sell. I monitored prices on 15 models over 18 months and found that 3-5 year old Crosstreks hold value better than any competitor. Read more on Subaru Crosstrek years to avoid.

The Crosstrek is underpowered with the 2.0L FB20 engine. Fine for commuting. Frustrating on highway merges. The 2.5L upgrade in 2021+ fixed that.

Subaru Ascent (2019+)

Subaru’s three-row SUV is only available from 2019 onward. The 2.4L FA24 turbo engine is proven and adequately powered. Early 2019 models had some software glitches, but nothing structural. A 2020 or newer Ascent with under 60,000 miles is a solid pick for families needing AWD and three rows.

Which Used Subaru Sedans Are Most Reliable?

Subaru Impreza (2016+)

The Impreza depreciates 40-45% in five years. That’s bad for original owners and great for used buyers. A three-year-old Impreza costs roughly half what it stickered for. The FB20 2.0L engine is reliable but slow. Think of the Impreza as affordable AWD transportation, not a performance sedan.

Under $10,000, the 2012-2015 Impreza is the budget entry point. Confirm the CVT has been serviced and check for oil consumption on 2012-2014 models.

Subaru Legacy (2015+)

The Legacy gets overlooked. Bigger than the Impreza, more comfortable on highways, and it depreciates almost as fast. A 2016-2018 Legacy with the 2.5L FB25 engine is one of the best AWD sedan values on the market. Nobody talks about it because it’s not exciting. That’s fine. Reliable and boring is what you want in a used sedan.

Is a Used Subaru WRX Worth It?

The WRX is Subaru’s performance icon, and the FA20 2.0L turbo engine is genuinely reliable when maintained. RepairPal data shows the turbo engine holds up well. Depreciation runs 25-30% at five years, similar to the Crosstrek.

The biggest risk isn’t the car. It’s the previous owner’s driving. WRXs attract hard launches, aftermarket tunes, and skipped oil changes. A stock WRX with full service records is a great buy. A modified WRX with missing maintenance history is a gamble I’d skip. Pull the Carfax, check for ECU reflashes, and look under the car for signs of track use or curb strikes.

Which Subaru Model Years Should You Avoid?

Two eras define the used Subaru danger zones. The EJ25 head gasket failures run from 2000 through 2010. The CVT problems cluster in 2012 through 2015. Target 2016 and newer for the safest buying window.

The pattern is clear. Anything with the EJ25 2.5L engine from 2000-2010 carries head gasket risk. Anything with the first-generation Lineartronic CVT from 2012-2015 carries transmission risk.

2016 is the year Subaru turned the corner. The FB25 engine’s oil consumption issues were resolved. The CVT got meaningful improvements. I tell buyers: if your budget allows a 2016 or newer Subaru, that’s your target. Read the detailed breakdowns for Subaru Forester years to avoid, Subaru Outback years to avoid, and Subaru Crosstrek years to avoid.

What Are the Best Subaru Engines for Used Buyers?

The engine under the hood matters more than the model name on the tailgate. Subaru has used five main engine families in the last two decades, and they range from excellent to expensive disaster.

The FB25 2.5L Boxer H4 is Subaru’s most reliable modern engine. Introduced in 2012, it replaced the troubled EJ25. Early 2012-2014 models had oil consumption complaints, but Subaru revised the piston rings and the problem faded by 2015. A 2015+ FB25 is a proven powerplant. This is the engine in most Foresters, Outbacks, and Legacys from 2012 onward. Verdict: BUY (2015+), CAUTION (2012-2014).

The FB20 2.0L Boxer H4 powers the Impreza and Crosstrek. Reliable and fuel-efficient. Underpowered — 152 horsepower moves a 3,200-pound car slowly. Merging onto highways in a loaded Crosstrek takes patience. Reliability is the payoff. Verdict: BUY.

The FA20 2.0L Turbo Boxer H4 goes in the WRX. Turbocharged to 268 horsepower, it responds well to maintenance and poorly to neglect. Change the oil every 5,000 miles with full synthetic. Keep the turbo feed lines clean. This engine lasts if you treat it right. Verdict: BUY (with service records).

The EJ25 2.5L Late Revision (2011-2012) got improved head gasket materials near the end of its life. Better than the 2000-2010 versions but still not as reliable as the FB25 that replaced it. I’d treat these as acceptable but not ideal. Verdict: CAUTION.

The EJ25 2.5L Original (2000-2010) is the engine that earned Subaru its head gasket reputation. I found that 2008 Outback with 95,000 miles — gaskets already weeping coolant externally. My mechanic confirmed the leak would only get worse. That sweet smell of coolant on a hot engine block means the gaskets are failing. Budget $2,000 to $3,000 for the repair on any EJ25 from this era. Verdict: AVOID.

CVT Transmission Assessment — Lineartronic: The 2012-2015 units had documented shudder issues under acceleration. Subaru extended the factory CVT warranty to 100,000 miles on affected models. Replacement costs $6,000 to $8,000 out of pocket. The 2016+ CVT is improved and more reliable. Verdict: CAUTION (2012-2015), BUY (2016+).

How Much Does It Cost to Own a Used Subaru?

Subaru costs $617 per year in repairs — $35 less than the $652 industry average. That number hides important context. AWD adds costs that front-wheel-drive cars don’t carry. And certain model years can blow past that average in a single repair bill.

What Is the Average Subaru Maintenance Cost?

Routine maintenance on a Subaru runs about $100-$200 more per year than a comparable Honda or Toyota. AWD systems need differential fluid changes every 30,000-60,000 miles. That’s $150-$300 per service that FWD owners never pay.

Brake pads and rotors wear evenly on all four wheels with AWD. Good for even braking. Means you replace all four corners at once instead of staggering front and rear. Budget $400-$600 for a full brake job.

The tire rule catches people off guard. All four tires must match within 2/32” of tread depth. One blowout on a two-year-old set means buying four new tires, not one. Some owners keep a full-size spare from the same set to avoid this. Smart move.

How Fast Do Subarus Depreciate?

I monitored Subaru prices on 15 models over 18 months. The sweet spot for used Subaru buying sits at 3-5 years old. You save 40-55% off the original sticker price, and reliability barely drops from new.

The Crosstrek and WRX hold value like trucks. That’s great if you own one. Frustrating if you’re buying used because discounts are slim. The Impreza and Legacy depreciate fast, making them the best value plays for budget buyers who want AWD.

How Does Subaru Compare to Mazda?

Subaru and Mazda compete for the same buyers — practical, affordable, and reliable. They solve different problems. Subaru wins the winter driving argument. Mazda wins everywhere else.

Mazda’s $462 annual repair cost beats Subaru’s $617 by $155 per year. That adds up. Over five years, a Mazda saves roughly $775 in maintenance compared to a Subaru.

If you live somewhere with real winters — Colorado, Minnesota, Michigan — Subaru’s standard AWD earns its keep. Everywhere else, the used Mazda buying guide shows why Mazda is the stronger overall value. My take: snow states, buy Subaru. Mild climates, buy Mazda.

What Are the Best Used Subarus Under $10,000 and $15,000?

Best Used Subarus Under $10,000:

• Impreza 2012-2015 — The cheapest way into AWD. Check for oil consumption on 2012-2014 models. Verify CVT service history. A clean 2015 Impreza under $10K is a solid pick.
• Legacy 2012-2015 — More car for the money than the Impreza. Bigger cabin, smoother ride. Same engine and transmission. Depreciates faster, so prices are lower. The hidden gem of the Subaru lineup.
• Forester 2011-2013 — The last of the EJ25 Foresters run right up to the gasket risk line. If the head gaskets have already been replaced with updated parts, these are great buys. If not, budget for the repair.

Best Used Subarus Under $15,000:

• Crosstrek 2016-2018 — The safest used Subaru buy in this budget. Post-CVT-fix years, reliable FB20 engine, and strong resale means low depreciation going forward. Slow but dependable.
• Forester 2016-2018 — More power and cargo space than the Crosstrek. FB25 engine with resolved oil consumption issues. A 2017 Forester with 50,000-70,000 miles is the sweet spot.
• Outback 2015-2017 — The wagon that thinks it’s an SUV. Great for road trips, camping gear, and dog owners. The 2015+ FB25 is reliable. Avoid the six-cylinder models — they’re thirsty and parts cost more.

What Should You Check Before Buying a Used Subaru?

Subarus have specific failure points that generic inspections miss. This checklist targets what actually goes wrong.

1. Head gasket inspection. On any EJ25 model (2000-2012), look for oily residue or white crust around the base of the engine. Smell for coolant — sweet antifreeze odor near a warm engine means gaskets are weeping. Ask the mechanic to pressure-test the cooling system.

2. CVT transmission test. Drive at 20-40 mph with light throttle. Any shudder, hesitation, or rubber-band feel means the CVT is slipping. Check the transmission fluid — it should be clear red or light pink, not brown or burnt-smelling.

3. Oil consumption check. On 2012-2014 FB25 models, check the oil level on the dipstick. Ask the seller when they last added oil between changes. More than a quart every 3,000 miles is excessive.

4. Tire tread depth — all four. Measure all four tires. They must match within 2/32”. Mismatched tires damage the center differential. Replacement cost: $1,500 to $3,000. If the tires don’t match, the previous owner either didn’t know or didn’t care. Both are red flags.

5. Undercarriage rust inspection. Subarus in salt-belt states rust aggressively. Check the rear wheel wells, subframe mounting points, and brake lines. Surface rust is normal. Structural rust is a dealbreaker.

6. CVT warranty status. Subaru extended the CVT warranty to 100,000 miles on 2012-2017 models. A dealer pushed a $2,800 extended warranty on a 2017 Forester I was looking at. “CVTs are expensive!” he said. I looked up Subaru’s factory CVT warranty extension — already covered to 100K. Declined it. That F&I manager’s pen was hovering, waiting for my signature. Slight deflation when I said “I’ll pass.” Always check what’s already covered before buying extra warranties.

7. Windshield condition. 2017 and newer Subarus crack windshields at a higher rate than competitors. Check for chips along the base and edges. Not a dealbreaker — replacement runs $400-$800 — but factor it into your offer.

8. Service records for timing belt (EJ25) or chain (FB). The EJ25 uses a timing belt that needs replacement every 105,000 miles ($800-$1,200). The FB engines use a timing chain that lasts the life of the engine. Know which one you’re buying and whether the service was done.

Frank’s Take: Whatever your budget is, keep 15% in reserve for repairs. A $15,000 budget means a $12,750 car and a $2,250 repair fund. I give this advice to every buyer I work with. The ones who follow it never get stuck with a surprise bill they can’t cover. The ones who spend every dollar on the car always end up stressed when the first repair hits. Read my complete used car buying guide for the full pre-purchase process.