I have a 1992 Camaro RS, LO3 305 TBI V8, Automatic, 125k miles. It had the oil changed awhile ago, not sure what they put in it, but when I picked it up, the engine was ticking (sounded like a lifter or failing oil pump). I've driven it a few thousand miles and it runs good and strong, but I've always noticed that the oil pressure guage reads low, between 5-25 psi. I'm concerned my bearings are shot. It normally starts up at 25psi and after driving 10-20 minutes, it reads 5-10 psi, and the ticking becomes slower. The engine never kills though. Could it just be a case of a bad sending unit, with to light of a weight of oil, or bad bearings? What are some common signs of bad bearing? The motor does not knock.
if your bearings are bad your engine would be knocking and would soon stop. it sounds like your bearings are worn which would give you low oil pressure. I would run the oil made for older engines that have wear like yours.and by the way try not to beat it to much it'll last a little longer