On-Vehicle Inspection

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ENGINE OIL LEVEL
1. Warm up the engine, stop the engine and wait 5 minutes. The oil level should be between the dipstick's low level mark and full level mark. If low, check for leakage and add oil up to the full level mark.
  NOTE: Do not fill with engine oil above the full level mark.
CHECK ENGINE OIL QUALITY
1. Check the oil for deterioration, water contamination, discoloring or thinning. If the quality is visibly poor, replace the oil.
REMOVE ENGINE UNDER COVER
REMOVE ENGINE OIL PRESSURE SWITCH ASSEMBLY
1. Disconnect the oil pressure switch connector.
2. Using a 24 mm deep socket wrench, remove the oil pressure switch.
  
  Fig 1: Removing Oil Pressure Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL OIL PRESSURE GAUGE
1. Install the oil pressure gauge with adapter.

CHECK OIL PRESSURE

Specification oil pressure

OIL PRESSURE SPECIFICATION

Item	Oil Pressure
Idle	80 kPa (0.8 kgf*cm² , 11.6 psi) or more
6,000 rpm	380 kPa (3.9 kgf*cm² , 55.5 psi) or more

If pressure is not as specified, check the oil pump.

Fig 2: Installing Oil Pressure Gauge

INSTALL ENGINE OIL PRESSURE SWITCH ASSEMBLY
1. Remove the oil pressure gauge.
2. Apply adhesive to 2 or 3 threads of the oil pressure switch.
  Adhesive:
  
  Toyota Genuine Adhesive 1344, Three Bond 1344 or equivalent
  
  Fig 3: Applying Adhesive Of Oil Pressure Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Using a 24 mm deep socket wrench, install the oil pressure switch.
  Torque: 15 N*m (153 kgf*cm, 11 ft.*lbf)
  
  NOTE: Do not start the engine within 1 hour after installation.
4. Connect the oil pressure switch connector.
CHECK FOR ENGINE OIL LEAKS
1. Start the engine. Make sure that no oil leaks from the connection point of the oil filter cap.