Reliant Rialto

Manual transmission fluid capacity & service interval

Reliant Rialto manual transmission fluid capacity is 0,64 liter. Service intervals include checks at 10000 km and changes at 1500 km or 20000 km. The data covers 2 configurations.

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

TypeSpecifications
Rialto Mk I (1982-1984)
  • Use: Normal
  • Capacity 0,64 liter
  • Check 10000 km
  • Change 20000 km
  • Code: 4/1
Rialto Mk I (1982-1984)
  • Use: Initial service
  • Capacity 0,64 liter
  • Change 1500 km
  • Code: 4/1

Additional Notes

  • The Reliant Rialto Mk I manual transmission holds 0.64 liter of fluid, a figure consistent with the compact gearboxes found in small three-wheeled vehicles of the era.
  • Under normal use conditions, the manual transmission fluid is checked at 10,000 km intervals and changed at 20,000 km intervals.
  • An initial service change is specified at just 1,500 km, a notably short interval intended to flush metal particles generated during the break-in period of new transmission components.
  • The capacity figure of 0.64 liter remains the same across both the normal use and initial service entries, indicating a consistent fill volume regardless of the service stage.
  • The 1982-1984 Rialto Mk I initial service interval of 1,500 km represents roughly one-thirteenth of the standard 20,000 km drain interval, reflecting how aggressively early wear debris accumulates in a freshly assembled gearbox.

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