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:

    2008 Infiniti M35 Review
    A car that's two years into its current design is usually beginning to show its age, especially when it has as many serious competitors as Infiniti's M sedan does. The M outpaces that trend: The 2 ...

    Audible reminders
    Key reminder chime A chime will sound if the driver side door is opened while the ignition switch is pushed to the ACC position. Make sure the ignition switch is pushed to the OFF position, and ...

    2012 Infiniti IPL G Coupe review
    The 2012 IPL G Coupe represents many things to Infiniti. For starters, the Infiniti Performance Line (IPL) is the automaker's first dabble into the kind of performance premium sub-branding that ma ...