Weird oil pressure
On startup oil pressure comes right up to 38 to 40 psi. If you rev the engine a little I notice the gauge will not move or may even drop slightly to 33 to 35 psi. After the truck comes up to normal operating temp (a mile or two down the road)the gauge/pressure works as you think it should. 35 to 40 psi at idle and goes up to 60 psi when revving the engine. Truck has high miles (220000) so I'm very aware of the oil pressure. Runs great, no ticks, knocks or anything. Great power still. Thanks.