Bentley Arnage

Differential fluid capacity & service interval

Bentley Arnage differential fluid capacity ranges from 1,25 to 2,8 liters. Service intervals include 16000 km or 12 months for checks, and 50000 km or 36 months and 100000 km or 72 months for changes. The data covers 5 configurations.

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

TypeSpecifications
  • Arnage R (2002-2006)
  • Rear
  • Use: Normal
  • Capacity 1,25 liter
  • Check 16000 km/ 12 months
  • Change 100000 km/ 72 months
  • Arnage T (2002-2006)
  • Rear
  • Use: Normal
  • Capacity 1,25 liter
  • Check 16000 km/ 12 months
  • Change 100000 km/ 72 months
  • Arnage Green Label (1999-2002)
  • Rear
  • Use: Normal
  • Capacity 2,8 liter
  • Change 50000 km/ 36 months
  • Arnage Red Label (1999-2002)
  • Rear
  • Use: Normal
  • Capacity 2,8 liter
  • Check 16000 km/ 12 months
  • Change 100000 km/ 72 months
  • Arnage (1998-1999)
  • Rear
  • Use: Normal
  • Capacity 2,8 liter
  • Change 50000 km/ 36 months

Additional Notes

  • The Bentley Arnage rear differential capacity splits into two distinct values across the model range: 2.8 liters for the 1998-1999 Arnage, the Green Label, and the Red Label, versus 1.25 liters for the Arnage R and Arnage T. A 2.8-liter fill is a notably large differential capacity, reflecting the physical size of the rear axle unit in those variants.
  • The Arnage R and Arnage T share an identical rear differential capacity of 1.25 liters, which is less than half the volume specified for the earlier and Green Label variants. A smaller differential housing typically corresponds to a revised axle design rather than a simplified unit.
  • The 1998-1999 Arnage and the Green Label (1999-2002) carry no listed check interval, only a change interval of 50,000 km or 36 months under normal use conditions. The absence of a separate check interval means fluid condition monitoring was not broken into a shorter inspection cycle for those variants.
  • The Red Label (1999-2002) shares the 2.8-liter capacity with the early Arnage and Green Label but follows a different service schedule: a check at 16,000 km or 12 months and a change at 100,000 km or 72 months under normal use conditions. The change interval is double that of the Green Label despite an identical fill volume.
  • The Arnage R and Arnage T (2002-2006) follow the same service structure as the Red Label, with a check at 16,000 km or 12 months and a change at 100,000 km or 72 months under normal use conditions, even though the capacity is 1.25 liters rather than 2.8 liters.
  • A 100,000 km or 72-month change interval is a long-cycle schedule by conventional standards, indicating the fluid in the Red Label, Arnage R, and Arnage T differentials was considered stable enough under normal use conditions to remain in service for up to six years between changes.
  • The 16,000 km or 12-month check interval present on the Red Label, Arnage R, and Arnage T represents an annual inspection point that falls well short of the full change interval, allowing for fluid level and condition verification without a complete drain and refill.

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