Boarder Line Low Oil Pressure
Thicker oil is not the solution, most likely it's rebuild time.
Not true Dan. Everyone is assuming the engine is junk.
Yet no one knows what the clearances are. So why are we assuming it’s got bad lifter bores or bearings? A plug may be missing or leaking. We don’t know.
But bet your *** that the bearing clearances are probably looser than if set them, but I never bought the loose is fast bullshit.
Let’s assume some things.
1. The bearing clearance is .0025 or looser.
2. The engine may have (and should have) full groove mains.
Just those two things right there will drop oil pressure that low.
Put some 20W50 in it and go drive the **** out of it.