Engine Cooling: Notes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1985 Volkswagen Scirocco, 1985 Volkswagen Quantum, 1985 Volkswagen Jetta, 1985 Volkswagen Golf, and 1985 Volkswagen GTI. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Coolant/water mixture should be used at all times. Only ethylene glycol based (phosphate-free) antifreeze may be used, as it protects aluminum/iron engines from corrosion.