Automotive gauges are simple and have changed little ... or a corroded or damaged resistor coil may provide a faulty reading. The oil pressure gauge works much like the fuel and coolant gauges.

If your gauge drops suddenly, it could mean your car's oil pressure is dangerously low. But what exactly causes low engine oil pressure? The answer is that various issues can cause this problem.

Major pressure gauges market participants include Ametek, Badotherm, Circor, Dwyer, Emerson, Fluke Corporation, Honeywell International, Kobold Instruments, Newbow, Omega Engineering, QED Aerospace, ...