Engine Coolant Protection Inspection
ENGINE COOLANT PROTECTION INSPECTION [LF, L3]1. Measure the coolant temperature and specific gravity using a thermometer and a hydrometer.
Caution:
- Use engine coolant at a concentration that meets the environmental conditions in which the vehicle is driven, otherwise engine damage could occur.
- The engine has aluminum parts and must be protected by an ethylene-glycol-based coolant to prevent corrosion and freezing.
- Do not use coolants containing Alcohol, Methanol, Borate or Silicate. These coolants could damage the cooling system.
- Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant's effectiveness.
- Engine coolant damages paint. If engine coolant does get on a painted surface, rinse it off quickly.
2. Determine the coolant protection level by referring to the graph shown.
- If the coolant protection level is not correct, add water or coolant.