Cam-carrier oil leak — the engine-out repair with no coveragemajor
- 2.5L boxer (FB25)
The FB-series boxer seals the cam carrier to the head with RTV silicone, and that seam plus the timing-chain cover seep oil with age. A Subaru specialist notes it can't be resealed in the car — the engine comes out — so it runs about $6,000 out of warranty (owner estimate), with no warranty extension. The federal file shows owners hitting it in the 42k–65k range; several were just outside the 5-year/60,000-mile powertrain warranty and quoted around $6,000. A mechanic confirms the behavior is 'pretty much the same' across '18, '19, and '20 cars. Inspect the front of the engine for seepage before buying.
Sources: NHTSA complaint database, 2019 Subaru Outback (true count 1029) · Independent Subaru mechanic channel transcripts (cam-carrier, CVT)
~$6,000
Cam-carrier reseal (engine out)
maintenance only
Slowing it with PCV service + oil changes