spark plugs INFINITI EX 2013 Owner's Manual

8 Maintenance and do-it-yourself
Maintenance requirement .................................... 8-2Scheduled maintenance .................................. 8-2
General maintenance....................................... 8-2
Where to go for service ................................... 8-2
General maintenance ........................................... 8-2 Explanation of maintenance items ................... 8-2
Maintenance precautions ..................................... 8-5
Engine compartment check locations ................... 8-7 VQ37VHR engine ............................................. 8-7
Engine cooling system ......................................... 8-8
Checking engine coolant level ......................... 8-9
Changing engine coolant ................................. 8-9
Engine oil .......................................................... 8-10
Checking engine oil level............................... 8-10
Changing engine oil and filter ....................... 8-10
Automatic transmission fluid ............................. 8-12
Power steering fluid........................................... 8-13
Brake fluid......................................................... 8-13
Window washer fluid ......................................... 8-14
Battery .............................................................. 8-15
Jump starting ................................................ 8-16
Variable voltage control system ......................... 8-17
Drive belts ......................................................... 8-17 Spark plugs ...................................................... 8-18
Replacing spark plugs ................................. 8-18
Air cleaner ........................................................ 8-19
Windshield wiper blades ................................... 8-20 Cleaning ...................................................... 8-20
Replacing..................................................... 8-20
Rear window wiper blades ................................ 8-21
Brakes .............................................................. 8-21 Self-adjusting brakes ................................... 8-21
Brake pad wear warning .............................. 8-21
Fuses ................................................................ 8-22 Engine compartment .................................... 8-22
Passenger compartment............................... 8-23
Intelligent Key battery replacement ................... 8-24
Lights................................................................ 8-26 Headlights ................................................... 8-27
Exterior and interior lights ........................... 8-28
Wheels and tires ............................................... 8-30 Tire pressure ............................................... 8-30
Tire labeling ................................................ 8-34
Types of tires............................................... 8-36
Tire chains ................................................... 8-37
Changing wheels and tires........................... 8-37

8-18Maintenance and do-it-yourself
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.
SDI2020
REPLACING SPARK PLUGS
If replacement is required, see an INFINITI
retailer 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 main-
tenance schedule in“INFINITI Service and
Maintenance Guide” , but do not reuse
them by cleaning or regapping. Always replace spark plugs with recom-
mended or equivalent ones.
SPARK PLUGS

10-6
Preview Function warning light .......................... 2-15
Push starting .................................................... 6-10
“PUSH”warning ............................................... 2-22
Push-button ignition switch ....................... 5-9, 5-10
R
Radio ................................................................ 4-53 Car phone or CB radio ................................. 4-93
FM-AM-SAT radio with Compact Disc
(CD) player ................................................... 4-68
Rapid air pressure loss ....................................... 5-7
Readiness for inspection/maintenance
(I/M) test .......................................................... 9-20
Rear center seat belt ......................................... 1-16
Rear door lock, Child safety rear door locks ........ 3-6
Rear seats .......................................................... 1-4
Rear window and outside mirror
defroster switch ................................................ 2-34
Rear window wiper blades ................................ 8-21
Rearview monitor .............................................. 4-24
Recorders, Event data ....................................... 9-21
Registering your vehicle in another country ...... 9-10
Remote keyless entry system ............................ 3-14
Reporting safety defects ................................... 9-19
Roadside assistance program ............................. 6-2
Rollover .............................................................. 5-6
Roof
Moonroof ..................................................... 2-55
Roof rack ..................................................... 2-51
S
Safety, Child seat belts ..................................... 1-17
Satellite radio operation ................................... 4-70
Seat adjustmentFront power seat adjustment .......................... 1-3
Front seats ..................................................... 1-3
Seat belt(s)
Child safety ................................................. 1-17
Infants ......................................................... 1-18
Injured persons ........................................... 1-13Larger children ............................................. 1-18
Precautions on seat belt usage .................... 1-11
Pregnant women .......................................... 1-13
Rear center seat belt .................................... 1-16
Seat belt cleaning .......................................... 7-6
Seat belt extenders ...................................... 1-16
Seat belt maintenance ................................. 1-17
Seat belt warning light and chime ............... 2-15
Seat belts .................................................... 1-11
Seat belts with pretensioners ...................... 1-49
Shoulder belt height adjustment .................. 1-16
Small children ............................................. 1-18
Three-point type .......................................... 1-13
Seat synchronization function ........................... 3-27
Seat(s) Driver-side memory ...................................... 3-26
Heated seats ............................................... 2-40
Seats ............................................................. 1-2
Seat-mounted jacket hanger ............................. 2-48 Security system (INFINITI Vehicle Immobilizer
System), Engine start ........................................ 2-30
Security system, Vehicle security system .......... 2-29
Selector lever
Shift lock release ......................................... 5-17
Servicing climate control ................................... 4-52
SETTING button ................................................. 4-14
Shift lock release Transmission ............................................... 5-17
SHIFT “P”warning ............................................ 2-22
Shifting, Automatic transmission ....................... 5-14
Shoulder belt height adjustment, For
front seats ........................................................ 1-16
Snow mode switch ............................................ 2-42
Spare tire ........................................................... 9-8
Spark plugs ...................................................... 8-18
Speedometer ...................................................... 2-7
Starting Before starting the engine ........................... 5-12
Jump starting ................................................. 6-8
Precautions when starting and driving ........... 5-3
Push starting ............................................... 6-10
Starting the engine ...................................... 5-13
STATUS button .................................................. 4-10
Status light, Front passenger air bag ................ 1-44
Steering Power steering fluid ..................................... 8-13
Power steering system ................................. 5-81
Steering-wheel-mounted controls
for audio ...................................................... 4-90
Tilting telescopic steering column ................ 3-21