Honda 1997 Civic Sedan Online Reference Owner's Manual page 135

Cooling System
8. Start the engine and let it run until
it warms up (the radiator cooling
fan comes on at least twice).
Maintenance
9. Turn off the engine. Check the
level in the radiator, add coolant if
needed. Install the radiator cap,
and tighten it fully.
RESERVE TANK
10. Fill the reserve tank to the MAX
mark. Install the reserve tank cap.