HONDA 2003 Civic GX - Owner's Manual - Manual (Page 36)

Inspect the threads and tip of the
spark plugs for corrosion. If you find
any corrosion in that area, the spark
plugs should be replaced. You should
not clean the spark plugs with a wire
brush and reuse them.
Spark Plug Gap:
The spark plugs in your vehicle are a
special platinum-tipped design for
longer life. They only need to be
replaced every 7 years or 105,000
miles (168,000 km), whichever
comes first.
For the replacement procedure,
refer to the primary owner’s manual.
The spark plug tightening torque is:
To inspect the spark plugs, follow
the replacement procedure for
removal and reinstallation described
in the owner’s manual.
The condition and gap of the spark
plugs should be inspected according
to the time and distance
recommendations in the
maintenance schedule in this
supplement.
NGK:
Specif ications:
Inspection
Spark Plugs
Maintenance 35
Inspect
for
Corrosion
SPARK PLUG
0.03 in (0.8 mm)
PFR7N-D
11 lbf·ft (15 N·m , 1.5 kgf·m)
0
0.1mm