Grand Cherokee 4WD L6-4.0L VIN S (1997)
Engine Oil Pressure: Specifications
At Idle Speed (600 rpm) ............................................................................................................................................................................. 89.6 kPa (13 psi)
At 1600 rpm & Higher ................................................................................................................................................................ 255 - 517 kPa (37 - 75 psi)
Oil Pressure Relief ....................................................................................................................................................................................... 517 kPa (75 psi)