Oil Pump

Rat Bastid said
It’s not possible.

Rat Bastid said
a high volume pump can’t suck a pan dry unless you have some mechanical issue.

So it's not possible, then it's possible..
And who's to guess that an engine doesn't have that mechanical issue. How many times have we heard of people putting on HV pumps and pressure springs to try and bandaid a worn engine with poor oil pressure.

Rat Bastid said
Fluids are incompressible.

Toss that fluid into a Black Hole, and see if it won't compress...LOL..