Vauxhall VX series
Coolant capacity & service interval
The Vauxhall VX series uses coolant with capacities ranging from 7.38 liters to 8.24 liters depending on configuration. Four configurations are covered, including variations with heater and automatic transmission. The coolant is specified for normal use.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| VX1800 (1976-1978) |
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| VX2300 (1976-1978) |
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| VX2300i (1976-1978) |
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| VX490 (1976-1978) |
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Additional Notes
- The Vauxhall VX series cooling system capacity starts at 7.38 liters in the base configuration, which represents the core cooling circuit without auxiliary circuits factored in.
- Adding a heater circuit raises the coolant capacity to 7.67 liters across the VX1800, VX2300, VX2300i, and VX490, reflecting the additional volume held within the heater matrix and its connecting hoses.
- The automatic transmission variant without a heater carries 7.96 liters, meaning the transmission oil cooler circuit integrated into the cooling system accounts for a 0.58-liter increase over the base figure.
- The highest capacity figure across all four variants is 8.24 liters, which applies when both a heater and an automatic transmission are fitted simultaneously, combining the volume contributions of both auxiliary circuits.
- All four variants — VX1800, VX2300, VX2300i, and VX490 — share identical cooling system capacities across every configuration, indicating a common cooling architecture regardless of engine displacement or fuel delivery type.
- The four capacity values across each variant follow a consistent pattern: base, base with heater, base with automatic transmission, and base with both, allowing the contribution of each auxiliary circuit to be isolated and compared directly.