This is my engine talking; 1. Oil pressure pumps up my hydraulic lifters. 2. Oil pressure sprays oil on the bottom of my pistons, cooling them. 3. Oil pressure operates my cylinder deactivating system. 4. Pressure pushes oil through the filter, cooler and oil galleries. 5. Pressure works against the centrifugal force of the crank and camshaft. 6. Pressure raises the boiling point of the oil. 7. Pressure keeps my plain bearings primed, so they can pump their own oil. I read the list of seven items. Nowhere does my engine say he likes high oil pressure. So the topic header should read: "I love high oil pressure". The rule of thumb is 10 psi of oil pressure for every 1,000 rpm, with a minimum of 30 psi. As RPM increases, the demand for oil also increases, was the logic. After reading through hours of discussion on the topic, I'm worse off now than a week ago. Now what? I'm at a crossroad here.