Normal Oil Pressure
WARNING: This page is about a different car, the 1983 Volkswagen Vanagon, 1983 Volkswagen Rabbit, 1983 Volkswagen Quantum, 1983 Volkswagen Pickup, and 1983 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
For Quantum, the oil pressure at normal operating temperature should be 7 psi (.49 kg/cm2 ) @ 1000 RPM, and 74 psi (5.2 kg/cm2 ) @ 5000 RPM. On all others, the oil pressure should be a minimum of 28 psi (2.0 kg/cm2 ) @ 2000 RPM and at normal operating temperature.