NISSAN 2014 GT R - Owner's Manual - Manual (Page 291)

8-20 Maintenance and do-it-yourself
WARNING
Be sure the engine and the ignition
switch are off and that the parking
brake is engaged securely.
NOTICE
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 a GT-R certified
NISSAN dealer for servicing.
Iridium-tipped spark plugs
It is not necessary to replace the iridium-tipped
spark plugs as frequently as the conventional
type spark plugs since they will last much longer.
Follow the maintenance schedule in NISSAN
Service and Maintenance Guide, but do not
reuse them by cleaning or regapping.
Always replace spark plugs with recom-
mended or equivalent ones.
Remove the retainers
*
1 as illustrated and pull
out the filter element
*
2 .
The filter element should not be cleaned and
reused. Replace it according to the maintenance
intervals. See NISSAN Service and Mainte-
nance Guide for maintenance intervals. When
SPARK PLUGS AIR CLEANER