The 2019 Outback sits in a transitional period for Subaru's FB25 engine, which still carries oil consumption baggage from earlier years but is generally improved. The CVT (CVT-type transmission) remains a weak link, particularly the oil cooler and mounts, while the 3.6L H6 is notably more reliable but rare.
Excessive Oil Consumption / Piston Ring Failure (2.5L only)
Occasional · high severityTypical onset: 60,000-120,000 mi
Symptoms: burning oil 1+ quart per 1,000 miles, blue smoke on cold start, fouled spark plugs, check engine light for misfire codes
Fix: Subaru issued extended warranty coverage through 2020 for some VINs. Proper fix is short block replacement or full engine rebuild with updated piston rings. 18-24 labor hours for short block swap including fluids, timing components, and ancillaries.
Estimated cost: $5,500-8,500
CVT Transmission Oil Cooler Line Failure
Common · medium severityTypical onset: 40,000-80,000 mi
Symptoms: transmission fluid leaking near radiator area, burnt smell, slipping or hesitation during acceleration, overheating warning on dash
Fix: Cooler lines corrode or crack at crimp joints. Replacement requires draining CVT, removing splash shields, and replacing lines plus fresh fluid. 2-3 hours labor. Use OEM lines—aftermarket often fails early.
Estimated cost: $400-700
Transmission Mount Deterioration
Common · low severityTypical onset: 50,000-90,000 mi
Symptoms: clunking on acceleration or deceleration, vibration at idle in Drive, excessive engine movement visible under hood during shifts
Fix: Rear transmission mount (pitch stopper) rubber tears or separates. Replacement is straightforward: raise trans slightly, swap mount. 1-1.5 hours labor. Inspect front engine mounts at same time.
Estimated cost: $200-350
Fuel Pump Recall and Related Failures
Occasional · high severitySymptoms: no-start condition, stalling at operating temperature, rough idle or stumble under load, fuel gauge erratic readings
Fix: NHTSA recalls covered specific pump batches (impeller deformation). Non-recall pumps also fail, especially if fuel is run low frequently. Pump replacement requires dropping tank, 2.5-3.5 hours labor. Always replace strainer and check in-line filter.
Estimated cost: $800-1,200
Head Gasket Weeping (2.5L, less common than older EJ engines)
Rare · medium severityTypical onset: 100,000+ mi
Symptoms: coolant smell from engine bay, slow coolant loss with no visible external leak, white residue around head-to-block mating surface, occasional overheating
Fix: FB25 head gaskets are far better than EJ25 but not immune. Requires heads removed, resurfaced if warped, new gaskets, timing components, and fluids. 12-16 hours labor. If caught early, head resurfacing often not needed.
Estimated cost: $2,200-3,500
Eyesight Camera Calibration Drift
Occasional · low severitySymptoms: Eyesight disabled warning after windshield replacement, false pre-collision braking warnings, lane-keep assist not centering properly
Fix: Not a mechanical failure but expensive nuisance. Windshield replacement or even heavy bug splatter can throw off stereo cameras. Requires dealer-level recalibration with Subaru scan tool and target setup. 1 hour labor, dealer-only typically.
Estimated cost: $150-250
Solid used buy if it's the 3.6L or a 2.5L with documented oil consumption test showing <1qt/3k miles—otherwise budget for eventual engine work.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.