Subaru Legacy / Outback, BN, BS (USA / CAN)

Clutch fluid capacity & service interval

Subaru Legacy / Outback, BN, BS (USA / CAN) models utilize clutch fluid. Service intervals include 15000 miles / 15 months and 30000 miles / 30 months. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Legacy / Outback 2.5i (2015-2017)
  • Use: Normal
  • Between min and max.
  • Change 30000 miles/ 30 months
Legacy / Outback 2.5i (2015-2017)
  • Use: Severe
  • Between min and max.
  • Change 15000 miles/ 15 months
Legacy / Outback 2.5i (2014-2015)
  • Use: Normal
  • Between min and max.
  • Change 30000 miles/ 30 months
Legacy / Outback 2.5i (2014-2015)
  • Use: Severe
  • Between min and max.
  • Change 15000 miles/ 15 months

Additional Notes

  • The Subaru Legacy / Outback 2.5i uses a hydraulic clutch system, meaning clutch fluid occupies a dedicated reservoir and is maintained between a minimum and maximum level rather than specified by a fixed volume fill quantity.
  • For the 2014-2015 2.5i under normal use conditions, the clutch fluid change interval is set at 30,000 miles or 30 months, whichever comes first.
  • Under severe use conditions for the 2014-2015 2.5i, the clutch fluid change interval is reduced to 15,000 miles or 15 months, exactly half the normal-use interval in both distance and time.
  • The 2015-2017 2.5i carries the same normal-use clutch fluid change interval of 30,000 miles or 30 months as the 2014-2015 configuration.
  • Severe use conditions for the 2015-2017 2.5i also mirror the earlier model years, with a change interval of 15,000 miles or 15 months.
  • The overlap at the 2015 model year across both row groupings reflects a mid-cycle point where the same interval structure applies, with no deviation in either the normal or severe service schedules between the two configurations.

Other Systems