My situation is as follows: Completely rebuild engine with new everything including oil pump. Broke in for 250 miles with Brad Penn break in oil 500 miles on the engine now Running 10W-30 Brad Penn Not running oil filter at all. Oil filter lines are capped off, this is to prevent starvation to the #1 bearings that is common in the F134. I change oil every year and don't put on lots of miles. I don't want to start a discussion about this choice. Oil pressure is about 42 psi on startup, after warm up it drops to 35 at idle and raises to 45-48 under power and RPMs. Engine runs perfect with no abnormal issues. Oil pressure gauge is a harbor freight mechanical one that appears to be working properly - its brand new and drops back to zero when the engine is off. Outside air temp is 60 degrees Fahrenheit Is this about right for a brand new engine running no filter?