Rolls-Royce Phantom

Coolant capacity & service interval

Rolls-Royce Phantom coolant capacity ranges from 13 to 31.82 liters depending on the configuration. The data covers 6 configurations.

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

TypeSpecifications
Phantom V 6.2 (1959-1968)
  • Use: Normal
  • Capacity 13 liter
Phantom IV (1950-1956)
  • Use: Normal
  • Capacity 17,05 liter
Phantom III (1936-1939)
  • Use: Normal
  • Capacity 26,14 liter
Phantom II, SK2-196 -> (1934-1936)
  • Use: Normal
  • Capacity 30,69 liter
Phantom II, <- SK2-196 (1929-1934)
  • Use: Normal
  • Capacity 30,69 liter
Phantom I (1925-1931)
  • Use: Normal
  • Capacity 31,82 liter

Additional Notes

  • The Rolls-Royce Phantom I (1925-1931) carries the largest cooling system capacity in the lineup at 31.82 liters, a figure consistent with the large-displacement six-cylinder engines of that era requiring substantial thermal management across an extended radiator and block volume.
  • The Phantom II cooling system holds 30.69 liters across both chassis variants — those built before serial number SK2-196 (1929-1934) and those from SK2-196 onward (1934-1936) — indicating no change in cooling system volume despite the mid-production chassis revision marked by that serial number boundary.
  • The Phantom III (1936-1939) shows a notable reduction to 26.14 liters compared to the Phantom II's 30.69 liters. The Phantom III introduced a V12 engine, and the different block architecture accounts for the shift in total coolant volume despite the added cylinder count.
  • The Phantom IV (1950-1956) cooling system capacity of 17.05 liters represents a significant drop from earlier Phantom generations. The Phantom IV used a straight-eight engine derived from military and industrial applications, and the more compact cooling circuit reflects a different engine layout and packaging compared to the pre-war models.
  • The Phantom V 6.2 (1959-1968) records the smallest cooling system capacity across all listed generations at 13 liters. The 6.2-liter V8 engine introduced in the Phantom V was a modern alloy unit, and alloy construction typically transfers heat more efficiently, supporting a reduced coolant volume relative to the older cast-iron and larger-displacement predecessors.
  • All six configurations carry a normal use condition designation, meaning the listed capacities apply to standard operating environments without a separate severe-duty or first-fill distinction affecting the specified volumes.

Other Systems