Oil Pressure Check

WARNING:

Be careful not to burn yourself, as the engine and oil may be hot.
Oil pressure check should be done in Neutral position (M/T) or Parking position (A/T).

Check oil level.
Remove oil pressure switch.

Fig 1: Identifying Oil Pressure Switch & Oil Filter
Courtesy of NISSAN MOTOR CO., U.S.A.
Install pressure gauge.

Fig 2: Identifying Pressure Gauge
Courtesy of NISSAN MOTOR CO., U.S.A.
Start engine and warm it up to normal operating temperature.
Check oil pressure with engine running under no-load.

Fig 3: Engine Speed & Oil Pressure Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.

If difference is extreme, check oil passage and oil pump for oil leaks.
Install oil pressure switch with sealant.