Oil Pressure gauge pegs at red lights accompany it...what is wrong? on 2006 Nissan Xterra

No other indications there is an issue. No idiot lights, no strange sounds with the motor, no loss of power...seems to be the gauge

Asked by for the 2006 Nissan Xterra
Unhook oil pressure switch (sending unit) to see if the gauge reads 0 with key on. If so replace the pressure switch.
Thanks...I will try that.
1 more answer
You need to use the factory recommended oil viscosity.