Engine Oil Pressure: Testing and Inspection

1. Check oil quality:
- Check the oil for deterioration, entry of water, discoloring or thinning.
- If oil quality is poor, replace the oil.
Oil grade: API grade SH, Energy-Conserving II or ILSAC multigrade engine oil.






- Recommended viscosity is as shown in the illustration, with SAE 5W-30 being the preferred engine oil.
2. Check engine oil level:
- The oil level should be between the "L" and "F" marks on the dipstick.
- If low, check for leakage and add oil up to the "F" mark.
3. Remove oil pan protector:
4. Remove engine under cover.






5. Remove oil pressure switch, and install a suitable oil pressure gauge.
6. Allow the engine to warm up to normal operating temperature.
7. Check oil pressure:
Oil pressure:
At idle: 29 kPa (0.3 kg/sq cm, 4.3 psi)or more.
At 3,000 rpm: 294-588 kPa (3.0-6.0 kg/sq cm, 43-85 psi).
8. Remove oil pressure gauge, and reinstall oil pressure switch as follows:
(a) Remove the oil pressure gauge.






(b )Apply LOCTITE 242, or equivalent, adhesive to two or three threads of the oil pressure switch.
(c) Install the oil pressure switch.
9. Start engine, and check for oil leaks.
10. Install engine under cover.
11. Install oil pan protector.