Highlander 2WD V6-3.0L (1MZ-FE) (2003)
Engine Oil Pressure: Testing and Inspection
ON-VEHICLE INSPECTION
1. CHECK ENGINE OIL LEVEL
a. After warming up the engine and then 5 minutes after the engine stop, oil level should be between the low level and full level marks of the
dipstick.
If low, check for leakage and add oil up to the full level mark.
NOTICE: Do not fill with engine oil above the full level mark.
2. CHECK ENGINE OIL QUALITY
a. Check the oil for deterioration, entry of water, discoloring or thinning.
If the quality is visibly poor, replace the oil.
Oil grade:
API grade SL, Energy-Conserving or ILSAC, multi-grade engine oil is recommended. SAE 5W-30 is the best choice for your vehicle, for good
fuel economy, and good starting in cold weather.
3. REMOVE OIL PRESSURE SWITCH ASSY
a. Disconnect the oil pressure switch connector.
b. Remove the oil pressure switch.
4. INSTALL OIL PRESSURE GAUGE