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2008 - MX-5 - Engine

ENGINE COOLANT REPLACEMENT [LF]

WARNING:

CAUTION:

  1. Use engine coolant at a concentration that meets the environmental conditions in which the vehicle is driven, otherwise engine damage could occur.

  2. The engine has aluminum parts and must be protected by an ethylene-glycol-based coolant to prevent corrosion and freezing.

  3. Do not use coolants containing Alcohol, Methanol, Borate or Silicate. These coolants could damage the cooling system.

  4. Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant"s effectiveness.

  5. Engine coolant damages paint. If engine coolant does get on a painted surface, rinse it off quickly.

NOTE:

1. Remove the cooling system cap.

2. Remove the radiator drain plug and drain the engine coolant into a container.

3. Flush the cooling system with water until all traces of color are gone.
4. Let the system drain completely.
5. Tighten the radiator drain plug.
6. Referring to the following chart, select the correct volume percentage of the water and coolant. Antifreeze solution mixture percentage (Except FL22 type engine coolant)

Engine coolant protection

Volume percentage (%)

Gravity at 20 °C {68 °F}

Water

Coolant

Above -16 °C {3 °F}

65

35

1.057

Above -26 °C {-15 °F}

55

45

1.072

Above -40 °C {-40 °F}

45

55

1.086


7. Refill the coolant into the coolant reserve tank up to the F mark on the tank.
8. Install the cooling system cap.

CAUTION:

9. Start the engine and warm up the engine by idling.

NOTE:

10. After the engine warms up, perform the following steps. At this time, be careful of the coolant temperature to prevent overheating.
a. Run the engine at approx. 2,500 rpm for 5 min.
b. Run the engine at approx. 3,000 rpm for 5 s, then idle.
c. Repeat step (2) 4—5 times.
11. Stop the engine, and inspect the coolant level after the coolant temperature decreases. If it is low, repeat steps 7—10.
12. Inspect for engine coolant leakage. (See ENGINE COOLANT LEAKAGE INSPECTION [LF].)


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