Replacing Coolant; Radiator Coolant Refill Capacity - Honda 1990 Civic Sedan Owner's Manual

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If the level is below the MAX
mark, but still visible, add a 50/50
solution of antifreeze and water
to bring it up to MAX.
If there is no coolant in the
reserve tank, the cooling system
should be checked for leaks and
repaired if necessary. Coolant
must then be added to the
radiator.
CAUTION:
Radiator coolant will damage paint. Quickly rinse any spilled
coolant from painted surfaces.
Wait until the engine is cool, then turn the radiator cap counterclock-
wise until it stops. DO NOT PRESS DOWN WHILE TURNING THE
CAP. After any remaining pressure has been relieved, remove the
cap by pressing down and again turning it counterclockwise. Add
enough coolant to fill the radiator, and reinstall the cap. Be sure to
tighten it securely. Fill the reserve tank up to the MAX mark with
the engine cold.
Maintenance
1. Check the freeze protection level of the coolant with a
hydrometer.
2. Keep the front of the radiator free of dirt and debris.
3. Check hoses and hose clamps regularly.

Replacing Coolant

Replace coolant at 36 months or 45,000 miles (72,000 km),
whichever comes first. Thereafter, replace every 2 years or 30,000
miles (48,000 km), whichever comes first.
RADIATOR COOLANT
REFILL CAPACITY:
(excluding reserve tank)
Manual transmission
Automatic transmission
*: DX Hatchback and DX/LX Sedan
M A X
MIN
0.4 (0.11 US gal, 0.09 Imp gal)
4.0 (1.06 US gal, 0.88 Imp gal)
4.1 (1.08 US gal, 0.90 Imp gal) *
4.0 (1.06 US gal, 0.88 Imp gal)*
4.5 (1.19 US gal, 0.99 Imp gal)
RESERVE TANK
(cont'd)