RX8 2RTR-1.3L (2006)
Coolant: Service and Repair
ENGINE COOLANT REPLACEMENT
Warning:
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Remove and install all parts when the engine is cold, otherwise they can cause severe burns or serious injury.
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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.
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When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and remove it.
Caution:
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Use engine coolant at a concentration that meets the environmental conditions in which the vehicle is driven, otherwise engine damage
could occur.
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The engine has aluminum parts and must be protected by an ethylene-glycol-based coolant to prevent corrosion and freezing.
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Do not use coolants containing Alcohol, Methanol, Borate or Silicate. These coolants could damage the cooling system.
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Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant's effectiveness.
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Engine coolant damages paint. If engine coolant does get on a painted surface, rinse it off quickly.
Note:
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If the "FL22" mark is shown on or near the cooling system cap, use FL22 type engine coolant.
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FL22 type engine coolant is shipped as a diluted solution (55% coolant, 45% water). Use the solution as is when replacing coolant.
1. Remove the cooling system cap.
2. Loosen the radiator drain plug and drain the engine coolant.
3. After completely draining the engine coolant, tighten the radiator drain plug.
4. Refill the engine coolant into the coolant reserve tank up to the F mark.
5. Install the cooling system cap.
6. Start the engine and warm it up by idling.