i've done a search but keep finding different answers.

my 4x4 is at 55psi cold idle and drops to 20psi hot idle(never drops below even after driving hard) and when warm its at 40psi at 2000 rpm when cruising!!

is this ok or is it a little on the low side? the car is using mobil1 15-50 oil.

any advise will be great!!

cheers