Gradual psi oil drop from 40/0.Oil lvl gd,no warning lights. on 2003 Chevrolet Silverado 2500 HD

Just recently I've noticed oil psi drp aft driving 40mi.Turning the engine off & restart brings pressure back up but will drp aft 10mi. Engine runs smooth @ idle and when given gas. No warning lights come on.

Asked by for the 2003 Chevrolet Silverado 2500 HD
do a manual oil pressure test and if good repl oil sending unit
3 more answers
Pick-up screen in sump is possibly clogged. R&R oil pan & clean or replace.
You need to check your oil pressure with a gauge...good oil pressure = bad sensor; bad oil pressure = possible oil pump issue...
Yikes! maybe your sensor is bad or your oil pump is losing pressure
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