Oil lamp turns on at low RPM, when i rev up a little it turns off
Oil is in good shape and full
Car has only 78,000 Mile
Pressure sender is bad or
Engine is worn out or
Oil pump is worn out.
Should have this looked at soon. If it’s a false reading, fix it because it’s important to know when you have low oil pressure. If it has low oil pressure it will likely trash your engine. It is an easy diagnosis for a mechanic.