Oil system myths

gregcon said

But when you put more pressure into a system of leaks, there will be more leakage. Nothing needs to be compressed, as long as there are leaks for the oil to flow through.

If you are able to suck 1GPM, and force 1GPM through those leakage paths, your consumption is 1GPM.

But if you can only return .95GPM, you will eventually run out of oil.

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Not exactly. Pressure is resistance to flow.

And you are claiming the pan goes dry because oil is retained in the engine. I say there is no way any engine, even a low budget deal will retain all that oil.

So you are mixing two issues together that are not related.

One is a high volume pump making the pan go dry relative to a standard volume pump (who determines what “standard” is) and the engine retaining oil.

They are not the same and not related.

Whatever GPM the engine uses with a (for example and easy math) 10 GPM pump, it will use the same GPM with a 12.5 GPM pump, which is a 25% increase.