Honda 1999 Civic Sedan Reference Owner's Manual page 191

Cooling System
RESERVE
TANK
HOLDER
4. Remove the reserve tank from its
holder by pulling it straight up.
Drain the coolant, then put the
tank back in its holder.
Maintenance
5. When the coolant stops draining,
RESERVE
tighten the drain plug in the
TANK CAP
bottom of the radiator.
6. Mix the recommended antifreeze
with an equal amount of purified
or distilled water in a clean
container. The cooling system
capacity is:
With 5-speed manual transmission:
0.82 US gal (3.1
With automatic transmission:
(U.S. D X , Value Package, and L X ,
Canada: L X , EX)
0.79 US gal (3.0
(U.S.: EX)
0.85 US gal (3.2
,0.68 Imp gal)
7. Pour coolant into the radiator up
to the base of the filler neck. Start
the engine and let it run for about
, 0.66 Imp gal)
30 seconds. Then turn off the
engine.
,0.70 Imp gal)
FILLER NECK
Fill up to here