Austin-Healey Sprite

Coolant capacity & service interval

The Austin-Healey Sprite uses coolant with a capacity ranging from 5.7 to 6 liters depending on the configuration. The data covers 5 different configurations.

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

TypeSpecifications
Sprite MK IV (1966-1971)
  • Use: Normal
  • Capacity 6 liter
Sprite MK III (1964-1966)
  • Use: Normal
  • Capacity 6 liter
Sprite MK II 1100 (1962-1964)
  • Use: Normal
  • Capacity 5,7 liter
Sprite MK II (1961-1962)
  • Use: Normal
  • Capacity 5,7 liter
Sprite MK I (Frogeye) (1958-1961)
  • Use: Normal
  • Capacity 5,7 liter

Additional Notes

  • The Austin-Healey Sprite cooling system capacity holds at 5.7 liters across the MK I (Frogeye) from 1958-1961, the MK II from 1961-1962, and the MK II 1100 from 1962-1964, indicating a consistent engine displacement and cooling circuit size through those early generations.
  • The MK I (Frogeye) 5.7-liter cooling system capacity reflects a full system fill figure, meaning the total volume of coolant the entire circuit holds when drained and refilled from empty.
  • Starting with the MK III from 1964-1966, the cooling system capacity increases to 6 liters, a modest but measurable step up from the 5.7-liter figure seen in earlier variants.
  • The MK IV from 1966-1971 carries forward the same 6-liter cooling system capacity established in the MK III, placing both later marks in a distinct capacity tier compared to the three earlier configurations.
  • All five configurations list a normal use condition against their respective capacities, meaning the 5.7-liter and 6-liter figures apply to standard operating and service conditions rather than a severe-duty or first-change-only scenario.
  • The 0.3-liter difference between the early-mark 5.7-liter figure and the later-mark 6-liter figure is small in absolute terms but can matter when mixing concentrated antifreeze with water to a target protection ratio, since the total volume determines how much of each component is needed.

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