Your engine doesn't enjoy oil starvation. Sure, you could run dangerously low on oil and get away with it, but don't count on it. Let the oil flow, friends, whether your vehicle has a normal wet sump ...
The pressurized wetsump oiling system on most production vehicles will look like this. Oil is stored in the oil pan and sucked into the oil pump (which is also located in the oil pan) to be pumped ...