Honda 2004 Civic Owner's Manual page 151

Engine Coolant, Windshield Washers
RADIATOR CAP
When the radiator and engine are
1.
cool, relieve any pressure in the
cooling system by turning the
radiator cap counterclockwise,
without pressing down.
2. Remove the radiator cap by
pushing down and turning
counterclockwise.
148
Maintenance
3. The coolant level should be up to
the base of the filler neck. Add
coolant if it is low.
Pour the coolant slowly and
carefully so you do not spill. Clean
up any spill immediately; it could
damage components in the engine
compartment.
4. Put the radiator cap back on and
tighten it.
5. Pour coolant into the reserve tank.
Fill it to halfway between the MAX
and MIN marks. Put the cap back
on the reserve tank.
Do not add any rust inhibitors or
other additives to your vehicle's
cooling system. They may not be
compatible with the coolant or
engine components.
Windshield Washers
Check the fluid level in the
windshield washer reservoir at least
monthly during normal use.
On Canadian models: The low washer
level indicator will light when the
level is low.
Fill the reservoir with a good-quality
windshield washer fluid. This
increases the cleaning capability and
prevents freezing in cold weather.
When you refill the reservoir, clean
the edges of the windshield wiper
blades with windshield washer fluid
on a clean cloth. This will help to
condition them.
NOTICE:
Do not use engine antif reeze
or a vinegar/water solution in the
windshield washer reservoir. Antif reeze
can damage your vehicle's paint, while
a vinegar/water solution can damage
the windshield washer pump. Use only
commercially-available windshield
washer f luid.