Is running at high oil pressure bad? What kind of damage may it cause?
My oil pressure has been reading 80psi since I changed my oil last week. Changed oil (10W-30) and Oil Filter. It is 80 as soon as I start it. After driving about 20 miles, side roads and expressway, 10mph - 65mph, it will lower to about 65psi when I slow down getting off the expressway and will go back up slightly.
I looked through the service manual and could not find anything regarding High Oil Pressure only Low. I know the pressure relief is at 75psi, obviously this is not working.
(2000 Wrangler, 4.0 Manual)