Honda Civic Service Manual: Radiator

Thermostat Housing Removal and Installation (R18Z1)

1141B6 1. Radiator Cap 1. Wait until the engine is cool, then carefully remove the radiator cap. ...

Radiator Connecting Pipe Removal and Installation (K24Z7)

1141E7 1. Radiator Cap 1. Wait until the engine is cool, then carefully remove the radiator cap. ...

See also:

Honda Civic Owners Manual. Washing the Vehicle
Wash the vehicle regularly. Wash more frequently when driving in the following conditions:  If driving on roads with road salt.  If driving in coastal areas.  If tar, soot, bird droppings, insects, or tree sap are stuck to painted surfaces. Washing the Vehi ...