spark plugs NISSAN XTERRA 2012 N50 / 2.G Owners Manual

8 Maintenance and do-it-yourself
Maintenance requirements..........................8-2
General maintenance ..............................8-2
Explanation of general maintenance items .........8-2
Maintenance precautions ...........................8-5
Engine compartment check locations ................8-6
Engine cooling system .............................8-7
Checking engine coolant level ...................8-8
Changing engine coolant ........................8-8
Engine oil .........................................8-9
Checking engine oil level ........................8-9
Changing engine oil ........................... 8-10
Changing engine oil filter .......................8-11
5-speed automatic transmission fluid
(if so equipped) .................................. 8-11
Power steering fluid ............................... 8-12
Brake and clutch (if so equipped) fluid ..............8-12
Brake fluid .................................... 8-13
Clutch fluid (if so equipped) ....................8-13
Windshield-washer fluid ........................... 8-13
Windshield-washer fluid reservoir ...............8-13
Battery .......................................... 8-14
Jump starting ................................. 8-15
Variable voltage control system .....................8-16Drive belt
........................................ 8-16
Spark plugs ...................................... 8-17
Replacing spark plugs ......................... 8-17
Air cleaner ....................................... 8-18
In-cabin microfilter (if so equipped) ..............8-18
Windshield wiper blades .......................... 8-19
Cleaning ..................................... 8-19
Replacing .................................... 8-20
Brakes .......................................... 8-22
Fuses ........................................... 8-22
Engine compartment ........................... 8-23
Passenger compartment .......................8-24
Battery replacement .............................. 8-26
Keyfob ....................................... 8-26
Lights ........................................... 8-27
Headlights .................................... 8-27
Exterior

and interior lights ....................... 8-29
Wheels and tires ................................. 8-32
Tire pressure . . . ............................... 8-32
Tire labeling ................................... 8-36
Types of tires .................................. 8-38
Tire chains .................................... 8-39
Changing wheels and tires .....................8-39

1. Visually inspect the belt for signs of unusualwear, cuts, fraying or looseness. If the belt is
in poor condition or is loose, have it replaced
or adjusted by a NISSAN dealer.
2. Have the belt checked regularly for condi- tion and tension in accordance with the
maintenance schedule found in the
“NISSAN Service and Maintenance Guide”.
REPLACING SPARK PLUGS
Platinum-tipped spark plugs
It is not necessary to replace platinum-tippedA
spark plugs as frequently as conventional type
spark plugs because they last much longer. Fol-
low the maintenance log shown in the “NISSAN
Service and Maintenance Guide”. Do not service
platinum-tipped spark plugs by cleaning or re-
gapping.
● Always replace spark plugs with rec-
ommended or equivalent ones.
WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
SDI1895
SPARK PLUGS
Maintenance and do-it-yourself8-17