Vauxhall Cavalier
Coolant capacity & service interval
The Vauxhall Cavalier coolant specifications cover capacities ranging from 5.8 liters to 7.2 liters depending on the configuration. Four configurations are included in the data. The fluid type specified is coolant for normal use.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Cavalier 2.0, Mk I (1977-1981) |
|
| Cavalier 1.3, Mk I (1975-1981) |
|
| Cavalier 1.6, Mk I (1975-1981) |
|
| Cavalier 1.9, Mk I (1975-1977) |
|
Additional Notes
- The Vauxhall Cavalier Mk I 1.3 carries a cooling system capacity of 5.8 liters, with the specification noting that figure applies to the base cooling system plus the heater circuit.
- The 1.6 engine has a base cooling system capacity of 6.3 liters, which rises to 6.8 liters when the vehicle is fitted with an automatic transmission, reflecting the additional fluid volume required by the transmission cooler integrated into the cooling circuit.
- Both the 1.9 (1975-1977) and the 2.0 (1977-1981) share identical capacity figures: 6.5 liters with a manual transmission and 7.2 liters with an automatic transmission.
- The automatic transmission variant of the 1.6 adds 0.5 liters over the manual figure, while the 1.9 and 2.0 automatic variants add 0.7 liters over their respective manual baselines, indicating a slightly larger cooler circuit demand in the higher-displacement engines.
- The 1.3 specification is the only one among the four Mk I configurations to reference the heater as a contributing factor to total capacity, suggesting the stated 5.8-liter figure already accounts for heater circuit volume rather than representing the engine block and radiator alone.
- All four configurations carry a normal use condition designation, meaning the stated capacities apply to standard operating environments without a separate severe-duty or first-fill distinction in the specifications.
- The 1.9 engine covers the 1975-1977 model years, while the 2.0 covers 1977-1981, with both sharing the same 6.5-liter and 7.2-liter capacity values despite the engine displacement change between those two periods.