ENGINE OIL PRESSURE
I have a '91 Mercury CAPRIS which, stock, uses an '87 MAZDA 323 DOHC 1.6L engine. Engine oil pressure (stock dash mounted guage) varies from just about zero (warm engine at idle) - but just above guage red line - to about 25psi (cool engine) at or above 2.5K rpm. Is ths normal for this engine?
Engine has functioned this way for most of its 79K miles. I have not mounted a guage dirctly on the engine (in oil pressure sender port) to cross check the dash guage reading. Am planning a cross country trip and don't like the prospect of engine freezing due tp low oil pressure. Am running valvoline 20-50.