Vauxhall VX series
Brake fluid capacity & service interval
Vauxhall VX series uses brake fluid with a capacity range of 0.5 to 1.0 liters. Service intervals occur every 10000 km or 3 months. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| VX1800 (1976-1978) |
|
| VX2300 (1976-1978) |
|
| VX2300i (1976-1978) |
|
| VX490 (1976-1978) |
|
Additional Notes
- All four Vauxhall VX series variants covered here share identical brake fluid service intervals, with a check required every 10,000 km or every 3 months under normal use conditions, whichever comes first.
- The specified fill level for the hydraulic brake system across the VX1800, VX2300, VX2300i, and VX490 is expressed as a range rather than a fixed volume, meaning the reservoir must be kept between the minimum and maximum marks rather than filled to a precise capacity figure.
- A "between min and max" specification is typical of brake fluid reservoir servicing, where the level is monitored and topped up as needed rather than measured in liters during routine maintenance.
- The 3-month time interval running alongside the 10,000 km mileage interval means whichever threshold is reached first triggers the check, which is a standard dual-condition approach for fluids prone to moisture absorption over time.
- Brake fluid is hygroscopic, meaning it absorbs moisture from the atmosphere, which is why a time-based check interval of 3 months accompanies the distance-based interval even when mileage accumulation is low.
- The VX2300 and VX2300i are listed as separate variants yet carry identical hydraulic brake system specifications, indicating no differentiation in brake fluid service requirements between the standard and fuel-injected versions of the 2300 engine for the 1976-1978 period.