oil viscosity NISSAN XTERRA 2006 N50 / 2.G Service And Maintenance Guide

8
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
The following descriptions are provided
to give you a better understanding of
the scheduled maintenance items that
should be regularly checked or
replaced. The maintenance log
indicates at which mileage/time
intervals each item requires service.
In addition to scheduled maintenance,
your Nissan requires that some items
be checked during normal day-to-day
operation. You can find these items
listed under “General Maintenance” in
Chapter 8 of your Owner’s Manual.
Items marked with “*”are recommended
by Nissan for reliable vehicle operation.
You are not required to perform
maintenance on these items in order to
maintain the warranties which come
with your Nissan. Other maintenance
items and intervals are required.When applicable, additional information
can be found in the
“Maintenance and
do-it-yourself” section in Chapter 8 of
your Owner’s Manual.
For recommended fuel, lubricants,
fluids, grease, and refrigerant, refer to
Chapter 9 in your Owner’s Manual.
Emission Control System
Maintenance:
Drive Belts*
Check engine drive belts for wear,
fraying or cracking and for proper
tension. Replace any damaged drive
belts.
Engine Air Filter
Replace at specified intervals. When
driving for prolonged periods in dusty
conditions, check/replace the filter
more frequently.
Engine Coolant*
Drain and flush the cooling system at
the specified interval.
Engine Oil and Oil Filter
Replace engine oil and oil filter at the
specified intervals. For recommend-
ed oil grade and viscosity refer to
Chapter 9 in your Owner’s Manual.
Engine Valve Clearance*
Inspect only if valve noise increases.
Adjust valve clearance if necessary.
Evaporative Emissions Control
Vapor Lines*
Check vapor lines and connections
for leaks or looseness. Tighten
connections or replace parts as
necessary.
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