2008 NISSAN SENTRA engine

REPLACING SPARK PLUGS
Platinum-tipped spark plugs (if so
equipped)
It is not necessary to replace platinum-tippedsA
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.
cAlways 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.
Iridium-tipped spark plugs (if so
equipped)
It is not necessary to replace iridium-tippedsA
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
iridium-tipped spark plugs by cleaning or regap-
ping.
cAlways 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.
If replacement is required, see your NISSAN
dealer for assistance.
SDI1895
SPARK PLUGS
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The air cleaner filter should not be cleaned and
reused. Replace it according to the maintenance
log shown in the “NISSAN Service and Mainte-
nance Guide.” When replacing the filter, wipe the
inside of the air cleaner filter housing and the
cover with a damp cloth.
To remove the air cleaner filter, push the tabs
sA
and pull the unit upwardsB.
WARNING
cOperating the engine with the air
cleaner removed can cause you or oth-
ers to be burned. The air cleaner not
only cleans the air, it stops the flame if
the engine backfires. If it isn’t there, and
the engine backfires, you could be
burned. Do not drive with the air cleaner
removed, and be careful when working
on the engine with the air cleaner
removed.cNever pour fuel into the throttle body or
attempt to start the engine with the air
cleaner removed. Doing so could result
in serious injury.
Type A
LDI0541
Type B
WDI0596
AIR CLEANER
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Proper brake inspection intervals should
be followed.For more information regarding
brake inspections, see the appropriate mainte-
nance schedule information in the “NISSAN Ser-
vice and Maintenance Guide”.
Two types of fuses are used. Type A is used in the
fuse boxes in the engine compartment. Type B is
used in the passenger compartment fuse box.
Type A fuses are provided as spare fuses. They
are stored in the passenger compartment fuse
box.
Type A fuses can be installed in the engine com-
partment and passenger compartment fuse
boxes.If a type A fuse is used to replace a type B fuse,
the type A fuse will not be level with the fuse
pocket as shown in the illustration. This will not
affect the performance of the fuse. Make sure the
fuse is installed in the fuse box securely.
Type B fuses cannot be installed in the under-
hood fuse boxes. Only use type A fuses in the
underhood fuse boxes.
LDI0455LDI0457
FUSES
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ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher or lower
amperage rating than specified on the
fuse box cover. This could damage the
electrical system or cause a fire.NOTE:
For checking and replacing fuses on
QR25DE engine models, see a NISSAN
dealer.
If any electrical equipment does not come on,
check for an open fuse.
1. Be sure the ignition switch and the headlight
switch are OFF.
2. Open the engine hood.
3. Remove the fuse box cover by pushing the
tabs
sAand lifting the cover up from the
front
sB.
4. Remove the fuse with the fuse puller. The
fuse puller is located in the center of the fuse
block in the passenger compartment.5. If the fuse is open
sA, replace it with a new
fuse
sB.
6. If a new fuse also opens, have the electrical
system checked and repaired by a NISSAN
dealer.
(MR20DE engine)
LDI0542WDI0452
Maintenance and do-it-yourself8-23
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9 Technical and consumer information
Capacities and recommended fuel/lubricants.........9-2
Fuel recommendation...........................9-3
Engine oil and oil filter recommendations..........9-5
Air conditioner system refrigerant and oil
recommendations..............................9-6
Specifications.....................................9-7
Engine........................................9-7
Wheels and tires...............................9-8
Dimensions and weights........................9-9
When traveling or registering your vehicle in
another country..................................9-10
Vehicle identification..............................9-10
Vehicle identification number (VIN) plate.........9-10
Vehicle identification number
(chassis number)..............................9-10
Engine serial number...........................9-11
F.M.V.S.S./C.M.V.S.S. certification label..........9-11
Emission control information label...............9-12
Tire and loading information label................9-12Air conditioner specification label................9-12
Installing front license plate........................9-13
Vehicle loading information........................9-13
Terms........................................9-13
Vehicle load capacity..........................9-14
Loading tips..................................9-16
Measurement of weights.......................9-16
Towing a trailer...................................9-17
Maximum load limits...........................9-17
Towing load/specification.......................9-20
Towing safety.................................9-20
Flat towing....................................9-24
Uniform tire quality grading........................9-24
Emission control system warranty..................9-25
Reporting safety defects (US only).................9-26
Readiness for inspection/maintenance (I/M) test.....9-26
Event Data Recorders (EDR).......................9-27
Owner’s Manual/Service Manual order information . . . 9-28
In the event of a collision.......................9-28
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The following are approximate capacities. The actual refill capacities may be slightly different. When refilling, follow the procedure
described in the “Maintenance and do-it-yourself” section to determine the proper refill capacity.
Capacity (Approximate) Recommended Fluids and Lubricants
US measure Imp measure Liter
Fuel 14-1/2 gal 12-1/8 gal 55.0 See “Fuel recommendation” later in this section.
Engine oil *5
Drain and Refill
With oil filter change MR20DE 4-1/8 qt 3-3/8 qt 3.9
• Engine oil with API Certification Mark *1
• Viscosity SAE 5W-30 *1 QR25DE 4-1/2 qt 3-3/4 qt 4.3
Without oil filter
changeMR20DE 3-7/8 qt 3-1/8 qt 3.6
QR25DE 4-1/4 qt 3-1/2 qt 4.0
Cooling system
With reservoir
MR20DE 1-7/8 gal 1-1/2 gal 7.0
50% Genuine NISSAN Long Life Antifreeze/Coolant or equivalent
50% Demineralized or distilled water
QR25DECVT 1-7/8 gal 1-5/8 gal 7.1
MT 1-7/8 gal 1-1/2 gal 6.9
Continuously Variable Transmission (CVT) fluid — — — Genuine NISSAN CVT Fluid NS-2 *2
Manual transmission gear oil
MR20DE — — — ELF XT4447 M+ 75W-80 or API GL-4, Viscosity SAE 75W-80
QR25DE —— — Genuine NISSAN Manual Transmission Fluid (MTF) HQ Multi 75W-85 or API
GL-4, Viscosity SAE 75W-85
Brake and clutch fluid Refill to the proper level according to the instructions in the
“Maintenance and do-it-yourself” section *6Genuine NISSAN Super Heavy Duty Brake Fluid or equivalent DOT 3 *3
Multi-purpose grease — — — NLGI No. 2 (Lithium Soap base)
Air conditioning system refrigerant — — — HFC-134a (R-134a) *4
Air conditioning system oil — — — NISSAN A/C System Oil Type S or equivalent *4
Windshield washer fluid — — — Genuine NISSAN Windshield Washer Concentrate Cleaner & Antifreeze or
equivalent
*1: For further details, see “Engine oil and oil filter recommendations.”
*2:Use only Genuine NISSAN CVT Fluid NS-2. Using transmission fluid other than Genuine NISSAN CVT Fluid NS-2 will damage the CVT transmission, which is not covered by
the NISSAN new vehicle limited warranty.
*3: Available in mainland USA through your NISSAN dealer.
*4: For further details, see “Air conditioner system refrigerant and oil recommendations.”
*5: For further details, see “Engine Oil” in the “Maintenance and do-it-yourself” section of this manual.
*6: See your NISSAN dealer for service.
CAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS
9-2Technical and consumer information
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FUEL RECOMMENDATION
MR20DE and QR25DE engine except Spec-V
Use unleaded regular gasoline with an octane
rating of at least 87 AKI (Anti-Knock Index) num-
ber (Research octane number 91) .
QR25DE engine Spec-V only
Use unleaded premium gasoline with an octane
rating of at least 91 AKI (Anti-Knock Index) num-
ber (Research octane number 96) .
If unleaded premium gasoline is not available,
unleaded regular gasoline with an octane rating
of at lease 87 AKI (Research octane number 91)
can be used, but only under the following precau-
tions:
chave the fuel tank filled only partially with
unleaded regular gasoline, and fill up with
unleaded premium as soon as possible.
cavoid full throttle driving and abrupt accel-
eration.
However, for maximum vehicle perfor-
mance, the use of unleaded premium gaso-
line is recommended.
CAUTION
cUsing a fuel other than that specified
could adversely affect the emission
control system, and may also affect the
warranty coverage.
cUnder no circumstances should a
leaded gasoline be used, because this
will damage the three-way catalyst.
cDo not use E-85 fuel in your vehicle.
Your vehicle is not designed to run on
E-85 fuel. Using E-85 fuel can damage
the fuel system components and is not
covered by the NISSAN new vehicle lim-
ited warranty.
Gasoline specifications
NISSAN recommends using gasoline that meets
the World-Wide Fuel Charter (WWFC) specifi-
cations where it is available. Many of the automo-
bile manufacturers developed this specification
to improve emission control system and vehicle
performance. Ask your service station manager if
the gasoline meets the WWFC specifications.
Reformulated gasoline
Some fuel suppliers are now producing reformu-
lated gasolines. These gasolines are specially
designed to reduce vehicle emissions. NISSANsupports efforts towards cleaner air and sug-
gests that you use reformulated gasoline when
available.
Gasoline containing oxygenates
Some fuel suppliers sell gasoline containing oxy-
genates such as ethanol, MTBE and methanol
with or without advertising their presence.
NISSAN does not recommend the use of fuels of
which the oxygenate content and the fuel com-
patibility for your NISSAN cannot be readily de-
termined. If in doubt, ask your service station
manager.
If you use oxygenate-blend gasoline, please take
the following precautions as the usage of such
fuels may cause vehicle performance problems
and/or fuel system damage.
cThe fuel should be unleaded and have
an octane rating no lower than that
recommended for unleaded gasoline.
cIf an oxygenate-blend other than
methanol blend is used, it should con-
tain no more than 10% oxygenate.
(MTBE may, however, be added up to
15%.)
cIf a methanol blend is used, it should
contain no more than 5% methanol
(methyl alcohol, wood alcohol) . It
should also contain a suitable amount
Technical and consumer information9-3
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of appropriate cosolvents and corro-
sion inhibitors. If not properly formu-
lated with appropriate cosolvents and
corrosion inhibitors, such methanol
blends may cause fuel system damage
and/or vehicle performance problems.
At this time, sufficient data is not avail-
able to ensure that all methanol blends
are suitable for use in NISSAN ve-
hicles.
If any driveability problems such as engine stall-
ing and difficult hot-starting are experienced after
using oxygenate-blend fuels, immediately
change to a non-oxygenate fuel or a fuel with a
low blend of MTBE.
Take care not to spill gasoline during refu-
eling. Gasoline containing oxygenates can
cause paint damage.
E–85 fuel
E-85 fuel is a mixture of approximately 85% fuel
ethanol and 15% unleaded gasoline. E-85 can
only be used in a Flexible Fuel Vehicle (FFV) . Do
not use E-85 in your vehicle. U.S. government
regulations require fuel ethanol dispensing
pumps to be identified by a small, square, orange
and black label with the common abbreviation or
the appropriate percentage for that region.
Aftermarket fuel additives
NISSAN does not recommend the use of any
aftermarket fuel additives (for example, fuel injec-
tor cleaner, octane booster, intake valve deposit
removers, etc.) which are sold commercially.
Many of these additives intended for gum, varnish
or deposit removal may contain active solvents or
similar ingredients that can be harmful to the fuel
system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended can cause
persistent, heavy “spark knock.” (“Spark
knock” is a metallic rapping noise.) If se-
vere, this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on level
roads, have a NISSAN dealer correct the
condition. Failure to correct the condition
is misuse of the vehicle, for which NISSAN
is not responsible.
Incorrect ignition timing may result in spark
knock, after-run and/or overheating, which may
cause excessive fuel consumption or enginedamage. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSAN dealer.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is not a
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.CAUTION
cYour vehicle is not designed to run on
E-85 fuel. Using E-85 fuel in a vehicle
not specifically designed for E-85 fuel
can damage fuel system components
and is not covered by the NISSAN new
vehicle limited warranty.
cE-85 is a mixture of approximately 85%
fuel ethanol and 15% unleaded
gasoline.
cU.S. government regulations require
ethanol dispensing pumps to be identi-
fied by a small, square, orange and
black label with the common abbrevia-
tion or the appropriate percentage for
that region.
9-4Technical and consumer information
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