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:

    Before starting the engine
    ► Make sure the area around the vehicle is clear. ► Check fluid levels such as engine oil, coolant, brake fluid and window washer fluid as frequently as possible, or at least whe ...

    Indicator lights
    Automatic Transmission (AT) position indicator light (if so equipped) When the ignition switch is pushed to the “ON” position, the indicator shows the automatic selector position. In the manual sh ...

    Fuel-filler door
    ...