Spark plugs

Spark plugs - Maintenance and do-it-yourself - Infiniti QX Owners Manual - Infiniti QX

Be sure the engine and the ignition switch WARNING
Be sure the engine and the ignition switch are off and that the parking brake is engaged securely.

CAUTION
 Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the spark plugs.

Replacing spark plugs

If replacement is required, see an INFINITI

If replacement is required, see an INFINITI retailer for servicing.

Iridium-tipped spark plugs

It is not necessary to replace the iridiumtipped spark plugs as frequently as the conventional type spark plugs since they will last much longer. Follow the maintenance schedule in “INFINITI Service and Maintenance Guide”, but do not reuse them by cleaning or regapping. Always replace spark plugs with recommended or equivalent ones.

    See also:

    Lane Departure Warning (LDW) system/ Lane Departure Prevention (LDP) system (if so equipped)
    The Lane Departure Warning (LDW) system/ Lane Departure Prevention (LDP) system will operate when the vehicle is driven at speeds of approximately 45 MPH (70 km/h) and above, and when it is travelin ...

    Headrest (2nd row center seat) (if so equipped)
    Removal and attachment To remove the headrest, push and hold the lock knob 1 and pull the headrest up. If the headrest is removed, store it in a secure place. Reinstall the headrest when th ...

    Pregnant women
    INFINITI recommends that pregnant women use seat belts. The seat belt should be worn snug, and always position the lap belt as low as possible around the hips, not the waist, and place the shoulder ...