Astra L4-1.8L (2009)
Clutch Fluid: Specifications
HYDRAULIC CLUTCH/BRAKE SYSTEM
Hydraulic Brake Fluid. Use only GM Part No. U.S. 88958860, in Canada 88901244, Super DOT-4 brake fluid.
CAUTION: Do not use mineral or paraffin-base oil in the clutch hydraulic system. These fluids may damage the rubber parts in the cylinders.
NOTE: This system does not have its own reservoir. It receives fluid from the brake master cylinder reservoir.