Triumph Stag
Coolant capacity & service interval
Triumph Stag requires coolant with a capacity of 10,5 liters. The data covers 1 configuration.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Stag (1970-1977) |
|
Additional Notes
- The Triumph Stag cooling system holds 10.5 liters of coolant, a relatively large capacity that reflects the demands of the V8 engine configuration used across the 1970-1977 production run.
- A 10.5-liter cooling system capacity is consistent with a full system service fill, meaning the figure accounts for the entire volume of the cooling circuit including the radiator, engine block passages, heater core, and associated hoses.
- The 10.5-liter specification is listed under normal use conditions, indicating the capacity figure applies to standard operating environments rather than severe or high-stress service scenarios.