Another of my peeves are anonymous internet hackers who repeatedly go for the put down while apparently ignoring the intent and content of the original post.

In reality "all the oil flow in the world" WILL lubricate the bearings.......it's called a splash system ,or also, a "once through" system. As an example, Chevrolets through 1954 ran quite successfully (albeit not as efficiently) without a "pressure" system. Lawnmower engines have operated for decades with a splash system. Two cycle engines...........etc. etc. etc. Should we talk about the transmission and differential? HHHMMMMMM!!

I subscribe to a systems approach, ie there are a number of considerations to total system function, and all need to be considered when evaluating the operating conditions.

Think about this when contemplating your oil pressure gauge, it might help with the concept:
"If the oil don't flow, the needle don't go!"

Sorry Brent.