Oil pressure gauge possibly failing.
So when im driving, occasionally my oil gauge will drop to the red line (as opposed to all the way down when the engine is off). I just changed my oil, same oil as always, and 6 quarts as always. It was already doing this a little bit before, friend of mine said its just the gauge needing replacement. I am going to try and replace it today. I unplugged and replugged it when i changed the oil and it seemed like there was oil on the plug itself. so i cleaned it up. Seemed like it was doing better, now whenever i idle at warm, it seems to drop. if i rev it to about 1k or higher, it bounces back up, then when it drops to idle, the pressure gauge drops back down as well. When i am driving on the highway, sometimes it just drops again.
Also, I do know that it is an "Idiot light" and not a real gauge. So i am wondering, Is my pressure riding along 6-7 psi? Everything else feels completely normal. no engine noises, ticking, excessive roughness, all the same as it has been for the past 2 years.
Im gonna grab a pressure sender at the autoparts store today after work and try to swap it out before i drive 200 miles out of town. But given that there are no other symptoms, would you guys say that its likely just the gauge/wire/connection? or can 6psi just sneak up on you and kill your engine? I always imagined oil pressure that low would be very apparent. The oil is right in its normal range on the dipstick btw.
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.