technical specifications INFINITI QX 2011 Owners Manual

1. Wear indicator
2. Wear indicator location mark
Tire wear and damage
WARNING
●Tires should be periodically in-
spected for wear, cracking, bulging or
objects caught in the tread. If exces-
sive wear, cracks, bulging or deep
cuts are found, the tire(s) should be
replaced.
●The original tires have built-in tread
wear indicators. When wear indica-
tors are visible, the tire(s) should be
replaced.
●Tires degrade with age and use. Have
tires, including the spare, over 6
years old checked by a qualified tech-
nician, because some tire damage
may not be obvious. Replace the tires
as necessary to prevent tire failure
and possible personal injury.
●Improper service of the spare tire may
result in serious personal injury. If it
is necessary to repair the spare tire,
contact an INFINITI retailer.
●For additional information regarding
tires, refer to “Important Tire Safety
Information” (US) or “Tire Safety In-
formation” (Canada) in the Warranty
Information Booklet.
Replacing wheels and tires
When replacing a tire, use the same size, tread
design, speed rating and load carrying capacity
as originally equipped. (See “SPECIFICATIONS”
in the “9. Technical and consumer information”
section for recommended types and sizes of
tires and wheels.)
WARNING
● The use of tires other than those recom-
mended or the mixed use of tires of different
brands, construction (bias, bias-belted or ra-
dial), or tread patterns can adversely affect
the ride, braking, handling, ground clear-
ance, body-to-tire clearance, tire chain
clearance, speedometer calibration, head-
light aim and bumper height. Some of these
effects may lead to accidents and could re-
sult in serious personal injury.
SDI1663
Maintenance and do-it-yourself8-37

9 Technical and consumer information
Capacities and recommended fuel/lubricants........ 9-2
Fuel recommendation ........................... 9-4
Engine oil and oil filter recommendation ......... 9-6
Air conditioning system refrigerant and
lubricant recommendations ..................... 9-7
Specifications ..................................... 9-8
Engine ........................................ 9-8
Wheels and tires ............................... 9-9
Dimensions .................................... 9-9
When traveling or registering your vehicle in
another country ................................... 9-9
Vehicle identification ............................. 9-10
Vehicle Identification Number (VIN) plate ........9-10
Vehicle identification number
(chassis number) .............................. 9-10
Engine serial number .......................... 9-10
F.M.V.S.S./C.M.V.S.S. certification label ..........9-11
Emission control information label ...............9-11
Tire and loading information label ...............9-11
Air conditioner specification label ...............9-12
Installing front license plate .......................9-12
Vehicle loading information .......................9-12
Terms ........................................ 9-12Vehicle load capacity
.......................... 9-14
Securing the load .............................. 9-15
Loading tips .................................. 9-16
Measurement of weights ....................... 9-16
Towing a trailer .................................. 9-17
Maximum load limits .......................... 9-17
Maximum gross vehicle weight (GVW)/
maximum gross axle weight (GAW) .............9-19
Towing load/specification ......................9-21
Towing safety ................................. 9-21
Flat towing ................................... 9-28
Uniform tire quality grading .......................9-28
Treadwear .................................... 9-28
Traction AA, A, B and C ........................ 9-29
Temperature A, B and C ....................... 9-29
Emission control system warranty .................9-29
Reporting safety defects .......................... 9-30
Readiness

for Inspection/Maintenance (I/M) test ....9-31
Event Data Recorders (EDR) .......................9-32
Owner’s Manual/Service Manual order
information ...................................... 9-32
In the event of a collision ......................9-33

The following are approximate capacities. The actual refill capacities may be a little different. When refilling, follow the procedure instructed in the “8.
Maintenance and do-it-yourself” section to determine the proper refill capacity.
Capacity (Approximate)Recommended specifications
US measure Imp mea- sureLiter
Fuel 26 gal 21-5/8 gal 98.4 See “FUEL RECOMMENDATION” later in this section.
Engine oil*1
Drain and refill With oil filter change 6-7/8 qt 5-3/4 qt 6.5 •Engine oil with API Certification Mark*2, *3
•Viscosity SAE 5W-30
Without oil filter change 6-1/2 qt 5-1/2 qt 6.2
Cooling system With reservoir 15-3/4 qt 13-1/8 qt 14.9 50% Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent
50% Demineralized or distilled water
Automatic transmission fluid ——— Genuine NISSAN Matic S ATF*4
Transfer fluid ——— Genuine NISSAN Transfer Fluid for ATX90A transfer*5*6
Front differential gear oil ——— Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or API GL-5, Viscosity SAE
80W-90*7
Rear differential gear oil ——— Genuine NISSAN differential oil synthetic 75W-90 or API GL-5 synthetic gear oil, Viscosity
SAE 75W-90*8
Power steering fluid (PSF) Refill to the proper oil level according to the
instructions in the “8. Maintenance and do-it-
yourself” section. Genuine NISSAN PSF or equivalent*9
Brake fluid Genuine NISSAN Super Heavy Duty Brake Fluid*10 or equivalent DOT 3
Suspension fluid ——— Genuine NISSAN Hydraulic Suspension Fluid*11*12
Multi-purpose grease ——— NLGI No. 2 (Lithium soap base)
Air conditioning system refrigerant ——— HFC-134a (R-134a)*13
Air conditioning system lubricants ——— NISSAN A/C System Oil Type S or exact equivalent
Window washer fluid ——— Genuine NISSAN Windshield Washer Concentrate Cleaner & Antifreeze or equivalent
*1: For additional information, see “ENGINE OIL” in the “8. Maintenance and do-it-yourself” section for changing engine oil.
*2: For additional information, see “ENGINE OIL AND OIL FILTER RECOMMENDATION” later in this section.
*3:INFINITI recommends Genuine NISSAN Ester Engine Oil available at INFINITI retailers.
*4: Using automatic transmission fluid other than Genuine NISSAN Matic S ATF will cause deterioration in driveability and automatic transmission durability, and may damage the automatic transmission, which is not
covered by the INFINITI new vehicle limited warranty.
*5: Using transfer fluid other than Genuine NISSAN Transfer Fluid will damage the transfer, which is not covered by the INFINITI new vehicle limited warranty.
*6: See your INFINITI retailer for recommended transfer fluid.
*7: For hot climates, Viscosity SAE 90 is suitable for ambient temperatures above 32°F (0°C).
CAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS
9-2Technical and consumer information

FUEL RECOMMENDATION
VK56VD engine
INFINITI recommends the use of unleaded pre-
mium gasoline with an octane rating of at least
91 AKI (Anti-Knock Index) number (Research
octane number 96).
If unleaded premium gasoline is not available,
you may use unleaded regular gasoline with an
octane rating of at least 87 AKI number (Re-
search octane number 91), but you may notice a
decrease in performance.
CAUTION
●Using a fuel other than that specified could
adversely affect the emission control sys-
tem, and may also affect warranty coverage.
● Under no circumstances should a leaded
gasoline be used, because this will damage
the three-way catalyst.
● Do 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
INFINITI vehicle limited warranty.
Gasoline specifications
INFINITI recommends using gasoline that meets
the World-Wide Fuel Charter (WWFC) specifica-
tions where it is available. Many of the automo-
bile manufacturers developed this specification
to improve emission system and vehicle perfor-
mance. Ask your service station manager if the
gasoline meets the World-Wide Fuel Charter
(WWFC) specifications.
Reformulated gasoline
Some fuel suppliers are now producing refor-
mulated gasolines. These gasolines are spe-
cially designed to reduce vehicle emissions.
INFINITI supports efforts towards cleaner air
and suggests that you use reformulated gaso-
line when available.
Gasoline containing oxygenates
Some fuel suppliers sell gasoline containing
oxygenates such as ethanol, MTBE and metha-
nol with or without advertising their presence.
INFINITI does not recommend the use of fuels of
which the oxygenate content and the fuel com-
patibility for your INFINITI cannot be readily
determined. 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 prob-
lems and/or fuel system damage.
●
The fuel should be unleaded and have an oc-
tane rating no lower than that recommended
for unleaded gasoline.
● If an oxygenate-blend, excepting a methanol
blend, is used, it should contain no more than
10% oxygenate. (MTBE may, however, be
added up to 15%.)
● If a methanol blend is used, it should contain
no more than 5% methanol (methyl alcohol,
wood alcohol). It should also contain a suit-
able amount of appropriate cosolvents and
corrosion inhibitors. If not properly formu-
lated with appropriate cosolvents and corro-
sion inhibitors, such methanol blends may
cause fuel system damage and/or vehicle
performance problems. At this time, suffi-
cient data is not available to ensure that all
methanol blends are suitable for use in
INFINITI vehicles.
If any undesirable driveability problems such as
engine stalling or hard hot starting are experi-
enced after using oxygenate-blend fuels, imme-
diately change to a non-oxygenate fuel or a fuel
with a low blend of MTBE.
Take care not to spill gasoline during refueling.
Gasoline containing oxygenates can cause paint
damage.
9-4Technical and consumer information

ENGINE
ModelVK56VD
Type Gasoline, 4-cycle
Cylinder arrangement 8-cylinder, V-slanted at 90°
Bore × Stroke in (mm) 3.858 × 3.622 (98 × 92)
Displacement cu in (cm
3) 338.78 (5,552)
Firing order 1-8-7-3-6-5-4-2
Idle speed rpm See the emission control information label on the underside of the hood.
Ignition timing (B.T.D.C.) degree/rpm
Spark plug Standard DILKAR7B11
Spark plug gap (Normal) in (mm) 0.043 (1.1)
Camshaft operation Timing chain
This spark ignition system complies with the Canadian standard ICES-002.
STI0397B
SPECIFICATIONS
9-8Technical and consumer information

WHEELS AND TIRES
Road wheel
TypeSizeOffset in (mm)
Conventional and spare 20 × 8J 1.18 (30)
22×8J
Tire
Type SizePressure PSI (kPa) [Cold]
Conventional and spare P275/60R20 114H 35 (240)
P275/50R22 111H
DIMENSIONS
Overall length in (mm) 208.3 (5,290)
Overall width in (mm) 79.9 (2,030)
Overall height in (mm) 75.8 (1,925)
Front tread in (mm) 67.5 (1,715)
Rear tread in (mm) 67.9 (1,725)
Wheelbase in (mm) 121.1 (3,075) If you plan to travel in another country,
you
should first find out if the fuel available is
suitable for your vehicle’s engine.
Using fuel with too low an octane rating may
cause engine damage. All gasoline vehicles
must be operated with unleaded gasoline.
Therefore, avoid taking your vehicle to areas
where appropriate fuel is not available.
When transferring the registration of your ve-
hicle to another country, state, province or dis-
trict, it may be necessary to modify the vehicle
to meet local laws and regulations.
The laws and regulations for motor vehicle
emission control and safety standards vary
according to the country, state, province or
district; therefore, vehicle specifications may
differ.
When any vehicle is to be taken into another
country, state, province or district and regis-
tered, its modifications, transportation, and reg-
istration are the responsibility of the user.
INFINITI is not responsible for any inconvenience
that may result.
WHEN TRAVELING OR REGISTERING YOUR
VEHICLE IN ANOTHER COUNTRY
Technical and consumer information9-9

CAUTION
●Do not use axle-mounted hitches.
● Do not modify the vehicle exhaust system,
brake system, etc.
● Do not attach any additional hitches to your
vehicle because a hitch is already mounted
to your vehicle frame.
Tire pressures
●When towing a trailer, inflate the ve-
hicle tires to the recommended cold
tire pressure indicated on the Tire and
Loading Information label.
●Trailer tire condition, size, load rating
and proper inflation pressure should
be in accordance with the trailer and
tire manufacturers’ specifications.
Safety chains
Always use a suitable chain between your ve-
hicle and the trailer. The safety chains should
be crossed and should be attached to the hitch,
not to the vehicle bumper or axle. Be sure to
leave enough slack in the chains to permit
turning corners.
Trailer lights
Your vehicle is equipped with a towing package,
which also includes the 7-pin trailer harness
connector located under the trailer hitch cover
on the rear bumper.
CAUTION
● When splicing into the vehicle electrical sys-
tem, a commercially available power-type
module/converter must be used to provide
power for all trailer lighting. This unit uses
the vehicle battery as a direct power source
for all trailer lights while using the vehicle
tail light, stoplight and turn signal circuits as a signal source. The module/converter
must draw no more than 15 milliamps from
the stop and tail lamp circuits. Using a
module/converter that exceeds these power
requirements may damage the vehicle’s
electrical system. See a reputable trailer re-
tailer to obtain the proper equipment and to
have it installed.
● Do not connect electrical devices that draw
more than 40 amps to the vehicle. The fus-
ible link may melt.
Trailer lights should comply with federal and/or
local regulations. For assistance in hooking up
trailer lights, contact an INFINITI retailer or
reputable trailer retailer.
Trailer brakes
When towing a trailer load of 3,500 lbs. (1,587
kg) or more, trailers with a brake system MUST
be used. However, most states require a sepa-
rate braking system on trailers with a loaded
weight above a specific amount. Make sure the
trailer meets the local regulations and the regu-
lations where you plan to tow.
STI0745
9-24Technical and consumer information