Land Rover Discovery 1, LJ (USA)

Automatic transmission fluid capacity & service interval

Land Rover Discovery 1, LJ (USA) automatic transmission fluid capacity is 9,1 liters. The service interval is 30000 miles. The data covers 2 configurations.

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

TypeSpecifications
Discovery 1 4.0 V8i (1995-1998)
  • Use: Normal
  • Capacity 9,1 liter
  • Change 30000 miles
  • Code: ZF 4HP22 4/1
Discovery 1 3.9 V8i (1993-1995)
  • Use: Normal
  • Capacity 9,1 liter
  • Change 30000 miles
  • Code: ZF 4HP22 4/1

Additional Notes

  • The Land Rover Discovery 1 LJ (USA) automatic transmission fluid capacity of 9.1 liters applies to both the 3.9 V8i and 4.0 V8i engine variants, indicating a full service fill figure rather than a dry or overhaul fill, which would typically be higher due to torque converter volume.
  • The 30,000-mile change interval listed for both engine variants corresponds to normal use conditions, meaning operation under typical driving cycles without the added thermal and mechanical stress associated with severe use classifications.
  • The 3.9 V8i, covering 1993-1995, and the 4.0 V8i, covering 1995-1998, share an identical 9.1-liter capacity and 30,000-mile interval, indicating no differentiation in automatic transmission service requirements between the two displacement variants across the full model year span.
  • A 9.1-liter service fill is a moderately large capacity for an automatic transmission of the mid-1990s era, consistent with the multi-speed units commonly paired with V8 engines in full-size four-wheel-drive vehicles of that period.

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