Jaguar XJ-S (EU)

Automatic transmission fluid capacity & service interval

Jaguar XJ-S (EU) automatic transmission fluid capacity is 9,1 liters. Service intervals include checks at 5000 km and 10000 km/6 months, with a change interval of 50000 km. The data covers 2 configurations.

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

TypeSpecifications
XJ-S V12 HE (1981-1991)
  • Use: Normal
  • Capacity 9,1 liter
  • Check 10000 km/ 6 months
  • Change 50000 km
  • Code: GM400 3/1
XJ-S V12 (1975-1981)
  • Use: Normal
  • Capacity 9,1 liter (Complete)
  • Check 5000 km
  • Code: 3/1

Additional Notes

  • The Jaguar XJ-S (EU) V12 carries a 9.1-liter automatic transmission fluid capacity, a figure associated with a complete overhaul or dry fill rather than a routine service top-up.
  • For the XJ-S V12 covering model years 1975-1981, the specification labels the 9.1-liter figure explicitly as a complete fill, and the only service action listed is a fluid level check at every 5,000 km intervals under normal use conditions.
  • No fluid change interval appears in the 1975-1981 V12 row, meaning the specification for that configuration addresses only the check interval and the complete capacity figure.
  • The XJ-S V12 HE, spanning 1981-1991, shares the same 9.1-liter capacity but introduces a more structured service schedule, pairing a check interval with a defined change interval.
  • Under normal use conditions, the V12 HE specification calls for a fluid level check every 10,000 km or every 6 months, whichever comes first, reflecting a time-based threshold alongside the distance-based one.
  • The V12 HE fluid change interval is set at 50,000 km under normal use, a figure that represents the full drain-and-refill cycle rather than the more frequent level checks.
  • Comparing the two configurations, the check interval doubles from 5,000 km on the earlier V12 to 10,000 km on the V12 HE, a difference that runs alongside the introduction of the High Efficiency engine variant in 1981.

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