Subaru Legacy / Outback, BD, BG, BK (EU)

Automatic transmission fluid capacity & service interval

Subaru Legacy / Outback, BD, BG, BK (EU) automatic transmission fluid capacity ranges from 7,9 to 9,5 liters. Service intervals include a 50000 km/24 months change and a 25000 km/12 months check. The data covers 5 configurations.

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

TypeSpecifications
  • Legacy / Outback 2.5 4WD (1996-1999)
  • Automatic/transferbox
  • Use: Normal
  • Capacity 9,5 liter
  • Change 50000 km/ 24 months
  • Code: 4/1
Legacy / Outback 2.0 (1994-1999)
  • Use: Normal
  • Capacity 7,9 liter
  • Change 50000 km/ 24 months
  • Code: 4/1
  • Legacy / Outback 2.0 4WD (1994-1999)
  • Automatic/transferbox
  • Use: Normal
  • Capacity 7,9 liter
  • Change 50000 km/ 24 months
  • Code: 4/1
Legacy / Outback 2.2 (1994-1998)
  • Use: Normal
  • Capacity 7,9 liter
  • Check 25000 km/ 12 months
  • Change 50000 km/ 24 months
  • Code: 4/1
  • Legacy / Outback 2.2 4WD (1994-1998)
  • Automatic/transferbox
  • Use: Normal
  • Capacity 7,9 liter
  • Check 25000 km/ 12 months
  • Change 50000 km/ 24 months
  • Code: 4/1

Additional Notes

  • Across the 2.0 and 2.2 engine variants of the Subaru Legacy / Outback BD, BG, BK (EU), the automatic transmission fluid capacity is rated at 7.9 liters, a figure that reflects a full service fill rather than a partial drain-and-refill quantity.
  • The 2.5 4WD variant, covering model years 1996-1999, carries a notably higher automatic transmission fluid capacity of 9.5 liters, which is approximately 1.6 liters more than the 7.9-liter figure shared by the 2.0 and 2.2 configurations.
  • All five configurations share the same fluid change interval under normal use conditions: 50,000 km or 24 months, whichever comes first, meaning both a distance threshold and a time limit govern the service schedule simultaneously.
  • The 2.2-liter variants, spanning 1994-1998, include an additional fluid check interval of 25,000 km or 12 months under normal use conditions, a requirement not listed for the 2.0 or 2.5 configurations.
  • The 4WD variants of both the 2.0 and 2.2 engines are noted as covering the automatic transmission combined with the transfer box, meaning the 7.9-liter capacity figure applies to that combined system rather than the transmission alone.
  • The 2.5 4WD configuration similarly lists the capacity as covering the automatic transmission and transfer box together, so the 9.5-liter figure represents the combined fluid volume for both units in that drivetrain.
  • The 2.5 4WD variant entered the specification range in 1996, two years after the 2.0 and 2.2 variants, and its higher fluid capacity may reflect a larger transmission assembly suited to the greater displacement engine.

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