Vauxhall VX4/90
Coolant capacity & service interval
The Vauxhall VX4/90 coolant specifications cover capacities ranging from 6.7 liter to 8.24 liter depending on configuration and heater inclusion. Four configurations are covered in the data.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| VX4/90, FE (1972-1976) |
|
| VX4/90, FD (1967-1972) |
|
| VX4/90, FC (1964-1967) |
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| VX4/90, FB (1961-1964) |
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Additional Notes
- The Vauxhall VX4/90 FB and FC generations, covering 1961-1967, share identical cooling system capacities of 6.7 liters without a heater and 7.5 liters with a heater connected.
- The addition of a cabin heater adds 0.8 liters to the coolant fill on both the FB and FC variants, reflecting the extra fluid volume held within the heater core and its associated hoses.
- From the FD generation onward, starting in 1967, the base cooling system capacity rises to 7.05 liters, marking a clear increase over the earlier 6.7-liter figure shared by the FB and FC.
- The FD variant's heater-equipped capacity of 7.67 liters represents a smaller proportional increase over its base fill compared to the FB and FC, where the heater added a full 0.8 liters versus the FD's 0.62-liter difference.
- The FE generation, produced from 1972-1976, carries the largest cooling system capacity across all four variants, at 7.95 liters without a heater and 8.24 liters with one.
- On the FE, the heater adds only 0.29 liters over the base capacity, the smallest heater-related increment across all four generations listed.
- All four generations specify coolant capacity under normal use conditions, meaning the figures reflect standard operating fills rather than a first-change or severe-service context.
- The progressive increase in base cooling capacity from 6.7 liters on the FB to 7.95 liters on the FE corresponds with the generational body and engine evolution across the 1961-1976 production span.