However, a generally accepted range is 20-40 PSI at idle and 40-60 PSI at higher RPM (around 2000-2500 RPM). Pressure should rise with RPM.
Important Considerations:
* Engine Condition: A well-maintained engine will typically be at the higher end of this range. Lower pressure could indicate worn bearings or other internal problems.
* Oil Temperature: Cold oil will have higher pressure than hot oil.
* Oil Viscosity: The viscosity (weight) of the oil used affects pressure. Thicker oil (like 20W-50 in hot climates) will generally produce higher pressure than thinner oil (like 5W-30 in cold climates). Always use the oil weight recommended by Ford for your engine and operating conditions.
* Gauge Accuracy: Your oil pressure gauge itself might be inaccurate.
If your oil pressure is consistently outside the above range, especially if it's low, it's crucial to investigate the cause. Low oil pressure can lead to serious engine damage. Have a qualified mechanic diagnose the problem. Don't continue to drive the vehicle with low oil pressure.
