I just got a 2002 Jeep Cherokee. While driving I noticed that the Oil pressure is typically at "3/4" on the gauge which seemed kinda high for normal highway driving.

The manual specifies that it should maintain 45-70psi on the highway but there are no pressures on the gauge so I have no idea what its actually running. Anyone have some light on this?

Thanks,
Eric

 

im not sure wat the number 4 ur cherokee go up 2, but on my '93 GC the highest oil pressure number is 80 so if that helps u in any way there u go

p.s. my dad and mom have been building oil/trans. pumps for race cars (NASCAR for the road races) and off-road trucks (alot of the big Names in the TORC series) for 15 years, so ya.

 

really?

 

Ya and my jeep when I rev it is round 70(3/4 on gauge) and at 40-50(1/2-5/8 on gauge) at idol does that help

 

The oil pressure gauge on a 2002 grand does NOT read "actual pressure",it is simply a switch,on/off...good/bad

 

Either way it sounds fine. You could try a lighter weight oil if you find that it really is running at too high of a pressure.