Oil Pressure

With engine at normal operating temperature, oil pressure at 3000 RPM should be 44-73 psi (3.1-5.1 kg/cm² ) on 1.6L and 51-80 psi (3.5-5.6 kg/cm² ) on 1.8L.

Fig 1: Cross-Sectional View Of Engine Oil Circuit (1.6L)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Cross-Sectional View Of Engine Oil Circuit (1.8L)

Courtesy of GENERAL MOTORS CORP.