You did not give to many details, but I have a 1991 Wrangler with a slightly modified 4.0L manual & if I use oil for the over 75K miles it tends to go a little higher & stay there longer until warmed up. If it stays around 60 all the time even after the oil is good n warmed up, that might not be good & indicate a problem. Once mine warms up, it is usually closer to the 40 LB range and might go higher when I am starting & using higher revs. It could be the oil sending unit or I know my needle in the gauge also bounces around but that could be the type of connections used to get the signals to the gauges- sometimes garbage builds up in them. Since oil is the life blood of an engine, if you cannot get this checked out by yourself, seek profrssional help cause it can toast an engine & be VERY expensive! High pressure means one of the following: Wrong oil, Blocked oil galleries, blocked oil bypass valve, bad gauge/sender unit. If all the gauges are reading high the dashboard regulator may be stuffed. Get a shop to check on a calibrated meter just what the pressure is before you stop ripping your pride and joy apart.
Normal is 20 to 60 psi.
Probably 5 psi to 60 psi.
Around 40 psi hot and 50-60 psi cold.
15 to 60 psi
60-80 psi cold, 30-45 psi hot.
The oil pressure gauge will fluctuate on a Chevy Tahoe when the vehicle is idling and when the vehicle is driven at highway speed. Idle is usually 30 psi oil pressure or slightly more. At highway speed, the oil pressure should be between 60 psi and 80 psi.
40 - 60 psi, depending on which engine you have;
50 PSI
This old? 20-60 psi at idle
Anything above 5 psi at idle will lubricate your engine. There is no maxim oil pressure for a 2003 Chevy Trailblazer. When the engine is cold and the oil is thick you should see 60 to 80 psi.
At 3 thousand rmp mine reads just less then 60 psi on the oil pressure guage. Mind you she is a 93 and could be lacking in power with the 425,oookms on her.
104' minimum for 45 psi. 138' for 60 psi.