Maintenance

Adding the Coolant

5steps
~30min
2/5difficulty
Done 0 of 5
Adding the Coolant
  1. Make sure the engine and radiator are cool.
  2. Turn the reserve tank cap 1/8 of a turn counterclockwise and relieve any pressure in the cooling system.
  3. Push down and turn the reserve tank cap counterclockwise to remove it.
  4. Pour coolant into the reserve tank until it reaches the MAX mark.
  5. Put the reserve tank cap back on, and tighten it fully.

Engine Coolant

Do not add rust inhibitors or other additives to your vehicle's cooling system. They may not be compatible with the coolant or with the engine components.

Adding the Coolant

NOTICE Pour the fluid slowly and carefully so you do not spill any. Clean up any spills immediately; they can damage components in the engine compartment.

Test yourself

A quick Honda Civic quiz: every answer comes with an explanation and a link to the manual page.