I am new to Isuzu's and have a question about the oil pressure. I did a search here but didn't find anything. My new rig is a 93 Rodeo 3.2 liter with 130,000 miles and it runs great. The idle is very low and the oil pressure once warmed up seems very low too. It is appears to be around 5psi idling once warmed up when on the gas its around 30psi. Oil levels look good and its not running hot. Is this normal? My last vehicle was a GMC with 4.3 liter and it both idled higher and had much higher oil pressure. Just trying to solve problems before they become problems. Any help is much appreciated thanks.