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Home >> Mazda >> 2006 >> 6 s, 4D Wagon, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Cooling System (L3 With TC)) >> Engine Coolant Protection Inspection

Engine Coolant Protection Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Measure the engine 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.
    NOTE:
    • If the "FL22" mark is shown on or near the cooling system cap, use FL22 type engine coolant.
    • FL22 type engine coolant is shipped as a diluted solution (55% coolant, 45% water). Use the solution as is when replacing coolant.
    Fig 1: Identifying Proper Cooling System Cap
    G04315877Courtesy of MAZDA MOTORS CORP.
  2. Determine the engine coolant protection level by referring to the graph shown.
    • If the engine coolant protection level is not correct, add water or engine coolant.
      Fig 2: Engine Coolant Protection Level Graph
      G04324689Courtesy of MAZDA MOTORS CORP.
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