Maintenance / 1998 Civic HX · Manual 5-speed · 4 cyl · 1.6 L
Spark plugs
Use the engine-specific plug type. Check the service schedule and inspect ignition faults before replacing parts.
IntervalReplace every 30,000 miles or 24 months, whichever comes first, in both normal and severe use. Use the HX-specific plug application.Verified
01 / Requirements
Configuration-specific service and fitment facts
These sourced values are shared by the specification sheet and the maintenance guides for this exact configuration.
- Cylinders
- 4 Verified
- Spark plug specification
- NGK ZFR4F-11 or DENSO KJ14CR-L11 VerifiedHX-specific application; the adjacent DX/EX plug row does not apply.
- Spark plug gap
- 0.043 in VerifiedNominal gap; follow the original plug instructions and tolerance.
- Installation
- Work on a cooled engine using the specified tightening procedure. Do not adjust a fine-wire plug gap unless its manufacturer explicitly permits it.
- Severe-use applicability
- Use severe intervals when the car is MAINLY driven on short trips (under 5 miles, or under 10 miles in freezing weather), above 90°F/32°C, with extensive idling/stop-go, with a roof carrier/in mountains, or on muddy, dusty or de-iced roads. Occasional exposure alone does not select severe.