ENGINE COOLANT LEVEL INSPECTION [SKYACTIV-G]

Oil and Chemical Type

Engine coolant  Type: Recommended engine coolant

Warning

•  Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.

•  Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while the pressure escapes.

•  When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and remove it.

Note

•  If the “FL22” mark is shown on or near the cooling system cap, use Mazda Genuine FL22 engine coolant.

•  FL22 type engine coolant is shipped as a diluted solution. Use the solution as is when replacing coolant.

1.  Remove the cooling system cap.

2.  Verify that the engine coolant is filled close to the top of the radiator filler neck.

•  If the engine coolant is not filled close to the top, replenish the engine coolant after performing the engine coolant leakage inspection.

3.  Verify that the engine coolant level in the coolant reserve tank is between the FULL and LOW marks.

•  If the engine coolant is below the LOW mark, replenish the engine coolant after performing the engine coolant leakage inspection.

ENGINE COOLANT PROTECTION INSPECTION [SKYACTIV-G]

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.

2.  Determine the engine coolant protection level by referring to the graph shown in the figure.

•  If the engine coolant protection level is not correct, add water or engine coolant.