Civic L4-1.8L (2006)
Coolant: Service and Repair
Coolant Replacement
1. Start the engine. Set the heater temperature control dial to maximum heat, then turn off the ignition switch. Make sure the engine and radiator are
cool to the touch.
2. Remove the radiator cap.
3. Loosen the drain plug (A), and drain the coolant.
4. Remove the drain bolt (A) located at the front of the engine block.
5. After the coolant has drained, apply liquid gasket to the drain bolt threads, then reinstall the bolt with a new washer and tighten it securely.
6. Tighten the radiator drain plug securely.
7. Remove the reserve tank, then drain the coolant, and reinstall the reserve tank.
8. Fill the reserve tank to the MAX mark (A) with Honda Long Life Antifreeze/Coolant Type 2 (P/N OL999-9001).