Reliant Regal

Manual transmission fluid capacity & service interval

Reliant Regal manual transmission fluid capacity is 1,14 liters. Service intervals include 800 km and 8000 km. The data covers 4 configurations.

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

TypeSpecifications
Regal 3/30 (1967-1972)
  • Use: Normal
  • Capacity 1,14 liter
  • Change 8000 km
  • Code: 4/1
Regal 3/30 (1967-1972)
  • Use: Initial service
  • Capacity 1,14 liter
  • Change 800 km
  • Code: 4/1
Regal 3/25 (1962-1968)
  • Use: Normal
  • Capacity 1,14 liter
  • Change 8000 km
  • Code: 4/1
Regal 3/25 (1962-1968)
  • Use: Initial service
  • Capacity 1,14 liter
  • Change 800 km
  • Code: 4/1

Additional Notes

  • Both the Regal 3/25 and the Regal 3/30 share an identical manual transmission fluid capacity of 1.14 liters, indicating a consistently sized gearbox unit across both configurations.
  • The Reliant Regal 3/25, covering model years 1962-1968, carries a normal-use manual transmission fluid change interval of 8,000 km.
  • Under normal use conditions, the Regal 3/30 from 1967-1972 follows the same 8,000 km change interval as the 3/25, with no deviation in the service schedule between the two variants.
  • An initial service interval of 800 km applies to both the 3/25 and the 3/30, representing a break-in drain performed at one-tenth the distance of the standard recurring interval. Early fluid changes at this mileage are associated with flushing metal particles generated during the bedding-in of new transmission components.
  • The 1.14-liter capacity figure remains constant across both the initial service and normal use entries for each variant, confirming the fill volume does not differ between a break-in drain and a routine service drain.

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