Wolseley 6/99, 6/110

Differential fluid capacity & service interval

Wolseley 6/99 and 6/110 models require differential fluid with a capacity of 1,84 liters. Service intervals include checks at 1500 km and changes at 800 km or 9000 km. The data covers 4 configurations.

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

TypeSpecifications
  • 6/110 (1961-1968)
  • Rear
  • Use: Normal
  • Capacity 1,84 liter
  • Check 1500 km
  • Change 9000 km
  • 6/110 (1961-1968)
  • Rear
  • Use: Initial service
  • Capacity 1,84 liter
  • Change 800 km
  • 6/99 (1959-1961)
  • Rear
  • Use: Normal
  • Capacity 1,84 liter
  • Check 1500 km
  • Change 9000 km
  • 6/99 (1959-1961)
  • Rear
  • Use: Initial service
  • Capacity 1,84 liter
  • Change 800 km

Additional Notes

  • The rear differential on both the Wolseley 6/99 and 6/110 holds 1.84 liters, a figure that applies uniformly across all four listed configurations regardless of model variant or year range.
  • An initial service drain interval of 800 km is specified for both the 6/99 (1959-1961) and the 6/110 (1961-1968), reflecting the common practice of removing early wear particles from a freshly run-in differential before switching to the standard change schedule.
  • Under normal use conditions, the change interval extends to 9000 km for both variants, representing a substantially longer service cycle than the break-in drain at 800 km.
  • A fluid level check at 1500 km is tied to the normal use condition for both the 6/99 and the 6/110, placing the inspection interval well before the 9000 km change point.
  • The 6/99 covered the 1959-1961 period, while the 6/110 ran from 1961-1968, yet both share an identical 1.84-liter rear differential capacity, indicating no change in the differential unit's fill volume across the model transition.

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