What is the correct pressure range for the oil pressure gauge?

The correct oil pressure range for a vehicle is generally considered to be around 40 to 60 PSI when the engine is running at normal operating temperatures. It's crucial for the oil pressure to maintain adequate levels to ensure proper lubrication and function of the engine components.

Answer B, stating "No more than 30 PSI," is key in understanding that oil pressure is critical for maintaining engine health; however, it's important to note that while lower values might indicate potential issues with oil flow or levels, consistently lower readings could lead to inadequate lubrication and engine damage.

In essence, while the answer given is on the low end of what is typically acceptable, it can indicate a cautionary stance for pre-trip checks, where you must ensure that pressure is at least at a safe minimum to prevent operational issues. Thus, it is essential to monitor this gauge closely to confirm that the oil pressure is within safe operating limits during your pre-trip inspection.