If the oil pressure drops to zero while driving, what should the driver do?

When the oil pressure drops to zero while driving, the appropriate action is to stop the vehicle immediately and investigate the cause. This is crucial because oil pressure is vital for the proper lubrication and functioning of the engine. A complete lack of oil pressure can lead to severe engine damage within minutes, as internal engine components may not be adequately lubricated, increasing the risk of overheating and potentially causing a catastrophic failure.

Stopping the vehicle allows the driver to safely assess the situation, check for potential leaks, gauge levels, or other issues that could have caused the drop in pressure. Continuing to drive or reducing speed without addressing the problem could lead to more extensive damage and a higher repair cost. Calling for assistance should come after determining the problem, as waiting or moving the vehicle without understanding the issue could further complicate matters.