oil pressure?
The oil pickups in the pan are well known for clogging up and needing replacement. It's the likely culprit.
Now, that gauge in your dash is nothing more than a fancy on/off indicator. If oil pressure is greater than 4psi, it reads "normal." Anything lower and it'll fling itself to L, or the "off" position.
Check the pressure with a mechanical gauge (if you don't have one take it to a shop) and get the real numbers. If pressure is low all the time, you might need to take a look at some potential problems going on inside your engine.


