Oil system myths

SGBARRACUDA said
Not true, how does the oil get from the pan to the pump? It is not a positive displacement pump. You can’t reach in a bucket and pick up oil with your hand no more than you can water. They don’t have enough surface tension. It is not gravity fed.

the oil is sucked from the pan as it is a positive displacement pump. here's one of many simple explanations readily available online Oil Pumps
as opposed to how a centrifugal pump works https://www.dultmeier.com/technical-library/how-does-a-centrifugal-pump-work.php
neil.