Triumph Spitfire
Coolant capacity & service interval
Triumph Spitfire coolant specifications cover a capacity range of 4.5 to 5.3 liters. The data includes 5 different configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Spitfire 1500 (1974-1980) |
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| Spitfire MK IV (1970-1974) |
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| Spitfire MK3 (1967-1970) |
|
| Spitfire MK2 (1965-1967) |
|
| Spitfire 4 (1962-1965) |
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Additional Notes
- The Triumph Spitfire 4 (1962-1965) carries a cooling system capacity of 5.3 liters, a figure shared by the MK2 (1965-1967) and MK3 (1967-1970) variants, indicating a consistent system volume across the early production generations.
- Starting with the MK IV (1970-1974), the cooling system capacity drops to 4.5 liters, representing a reduction of 0.8 liters compared to the earlier 5.3-liter specification.
- The Spitfire 1500 (1974-1980) retains the 4.5-liter cooling system capacity introduced with the MK IV, placing both later variants at the same fill volume under normal use conditions.
- All five variants list cooling system capacity under normal use conditions, meaning the 4.5-liter and 5.3-liter figures apply to standard operating environments rather than severe or first-change scenarios.
- A cooling system capacity in the range of 4.5 to 5.3 liters is typical of small-displacement inline four-cylinder engines in compact roadsters, where the system volume reflects the engine block, cylinder head passages, radiator, and heater circuit combined.
- The 0.8-liter difference between the early 5.3-liter specification and the later 4.5-liter specification is consistent with engine displacement or cooling jacket revisions that reduce the total fluid volume the system holds at a full service fill.