Engine Coolant Protection Inspection
- Measure the coolant temperature and specific gravity with a thermometer and a hydrometer.
CAUTION:
- The engine has aluminum parts that can be damaged by alcohol or methanol antifreeze. Do not use alcohol or methanol in the cooling system. Use only ethylene-glycol-based coolant.
- Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant's effectiveness.
- Determine the coolant protection by referring to the graph shown.
- If the coolant protection is not correct, add water or coolant.
Courtesy of MAZDA MOTORS CORP.