RDX AWD L4-2.3L Turbo (2010)
Coolant: Service and Repair
Coolant Replacement
1. Start the engine. Set the heater temperature control dial to maximum heat, then turn the ignition switch to LOCK (0). Make sure the engine and the
radiator are cool to the touch.
2. Remove the radiator cap.
3. Loosen the drain plug (A) and drain the coolant.
4. After the coolant has drained, tighten the radiator drain plug securely.
5. Remove, drain, reinstall the coolant reservoir.
6. Fill the coolant reservoir to the MAX mark (A) with Acura Long Life Antifreeze/Coolant Type 2 (P/N OL999-9011A).
7. Pour Acura Long Life Antifreeze/Coolant Type 2 into the radiator up to the base of the filler neck.
NOTE:
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Always use Acura Long Life Antifreeze/Coolant Type 2. Using a non-Acura coolant can result in corrosion, causing the cooling system to
malfunction or fail.
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Acura Long Life Antifreeze/Coolant Type 2 is a mixture of 50 % antifreeze and 50 % water. Do not add water.
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If the vehicle is regularly driven in very low temperatures (under -31 °F, -35 °C) a 60 % concentration of coolant should be used. To
accomplish this, pour 1.6 L (0.4 US gal) of Honda Extreme Cold Weather Antifreeze/Coolant Type 2 into the radiator first, then add Acura
Long Life Antifreeze/Coolant Type 2 until the radiator is full.
