HONDA 2003 Civic GX - Owner's Manual - Manual (Page 32)

Engine coolant change capacity:
Refer to the primary owner’s manual
for engine coolant adding and
replacement procedures.
5W-20 oil is formulated for year-
round protection of your Honda, to
improve cold weather starting, and
to help your engine use less fuel.
The SAE number tells you the oil’s
viscosity or weight. Select the oil for
your vehicle according to this chart.
Refer to the primary owner’s manual
for engine oil adding and changing
procedures.
Engine oil change capacity
(including filter):
Engine Oil Engine Coolant
Engine Oil, Engine Coolant
Maintenance 31
Ambient Temperature
1.03 US gal (3.9 , 0.86 Imp gal)
3.4 US qt (3.2 , 2.8 Imp qt)