Generally, you should see oil pressure between 15-20 PSI at idle and 30-50 PSI at higher RPMs (around 2000-2500) when the engine is warmed up to operating temperature.
Important Considerations:
* Cold Engine: Oil pressure will be higher when the engine is cold. This is normal.
* Warm Engine: Pressure will decrease as the engine warms up and the oil thins.
* Oil Viscosity: The viscosity (thickness) of the oil used also affects pressure. Using the wrong viscosity can lead to low or high readings. Consult your owner's manual for the recommended oil viscosity.
* Gauge Accuracy: Your oil pressure gauge might not be perfectly accurate.
If you suspect a problem: Don't rely solely on the gauge. Low oil pressure is a serious issue that can cause engine damage. If you notice consistently low pressure (especially at higher RPMs), or if the pressure fluctuates wildly, take your Jeep to a mechanic for a proper diagnosis.
