INFINITI M 2012 Owners Manual

9-4Technical and consumer information
FUEL RECOMMENDATION
Use unleaded premium gasoline with an
octane rating of at least 91 AKI (Anti-Knock
Index) number (Research octane number
96).
If premium gasoline is not available,
unleaded regular gasoline with an octane
rating of 87 AKI number (Research octane
number 91) may be temporarily used, but
only under the following precautions:
.Have the fuel tank filled only partially
with unleaded regular gasoline, and fill
up with unleaded premium gasoline as
soon as possible.
. Avoid full throttle driving and abrupt
acceleration.
However, for maximum vehicle perfor-
mance, the use of unleaded premium
gasoline is recommended.
CAUTION
. Using a fuel other than that specified
could adversely affect the emission
control system, 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)
specifications where it is available. Many
of the automobile manufacturers devel-
oped this specification to improve emis-
sion system and vehicle performance. Ask
your service station manager if the gaso-
line meets the World-Wide Fuel Charter
(WWFC) specifications.
Reformulated gasoline
Some fuel suppliers are now producing
reformulated gasolines. These gasolines
are specially designed to reduce vehicle
emissions. INFINITI supports efforts to-
wards cleaner air and suggests that you
use reformulated gasoline when available.
Gasoline containing oxygenates
Some fuel suppliers sell gasoline contain-
ing oxygenates such as ethanol, MTBE and
methanol with or without advertising their
presence. INFINITI does not recommend the
use of fuels of which the oxygenate content
and the fuel compatibility 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 problems and/or fuel system
damage.
.The fuel should be unleaded and have
an octane 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 suitable amount
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
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 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
refueling. 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 fuel 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
INFINITI does not recommend the use of
any aftermarket fuel additives (Example:
fuel injector 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 solvent 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 above can
cause persistent, heavy spark knock.
(Spark knock is a metallic rapping noise.)
If severe, 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 an INFINITI retailer
correct the condition. Failure to correct the
condition is misuse of the vehicle, for
which INFINITI is not responsible.
Incorrect ignition timing will result in
knocking, after-run or overheating. This in
turn may cause excessive fuel consumption
or damage to the engine. If any of the above symptoms are encountered, have
your vehicle checked at an INFINITI retailer
or other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
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
.
Your 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 INFINITI new vehicle
limited warranty.
. E-85 is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline.
. U.S. government regulations require
ethanol dispensing pumps to be identi-
fied by a small, square, orange and black
label with the common abbreviation or
the appropriate percentage for that
region.
Technical and consumer information9-5

9-6Technical and consumer information
STI0505
1. API certification mark
2. API service symbol
ENGINE OIL AND OIL FILTER RE-
COMMENDATION
Selecting the correct oil
It is essential to choose the correct grade,
quality, and viscosity engine oil to ensure
satisfactory engine life and performance,
see“Capacities and recommended fuel/
lubricants ”earlier in this section. INFINITI
recommends the use of an energy conser-
ving oil in order to improve fuel economy.
Select only engine oils that meet the American Petroleum Institute (API) certifi-
cation or International Lubricant Standar-
dization and Approval Committee (ILSAC)
certification and SAE viscosity standard.
These oils have the API certification mark
on the front of the container. Oils which do
not have the specified quality label should
not be used as they could cause engine
damage.
Oil additives
INFINITI does not recommend the use of oil
additives. The use of an oil additive is not
necessary when the proper oil type is used
and maintenance intervals are followed.Oil which may contain foreign matter or
has been previously used should not be
used.
Oil viscosity
The engine oil viscosity or thickness
changes with temperature. Because of this,
it is important that the engine oil viscosity
be selected based on the temperatures at
which the vehicle will be operated before
the next oil change. Choosing an oil
viscosity other than that recommended
could cause serious engine damage.
Selecting the correct oil filter
Your new vehicle is equipped with a high-
quality genuine NISSAN oil filter. When
replacing, use the genuine oil filter or its
equivalent for the reason described in
change intervals.
Change intervals
The oil and oil filter change intervals for
your engine are based on the use of the
specified quality oils and filters. Oil and
filter other than the specified quality, or oil
and filter change intervals longer than
recommended could reduce engine life.
Damage to engines caused by improper
maintenance or use of incorrect oil and

filter quality and/or viscosity is not covered
by the new INFINITI vehicle limited warran-
ties.
Your engine was filled with a high quality
engine oil when it was built. You do not
have to change the oil before the first
recommended change interval. Oil and
filter change intervals depend upon how
you use your vehicle. Operation under the
following conditions may require more
frequent oil and filter changes.
.repeated short distance driving at cold
outside temperatures,
. driving in dusty conditions,
. extensive idling,
. stop and go “rush hour ”traffic,
Refer to the “INFINITI Service and Main-
tenance Guide ”for the maintenance sche-
dule.
AIR CONDITIONING SYSTEM RE-
FRIGERANT AND LUBRICANT RE-
COMMENDATIONS
The air conditioning system in your
INFINITI vehicle must be charged with the
refrigerant HFC-134a (R-134a) and the
lubricant, NISSAN A/C system oil Type S
or the exact equivalents.
CAUTION
The use of any other refrigerant or lubricant
will cause severe damage to the air con-
ditioning system and will require the repla-
cement of all air conditioner system
components.
The refrigerant HFC-134a (R-134a) in your
INFINITI vehicle will not harm the earth ’s
ozone layer. Although this refrigerant does
not affect the earth ’s atmosphere, certain
governmental regulations require the re-
covery and recycling of any refrigerant
during automotive air conditioning system
service. Your INFINITI retailer has the
trained technicians and equipment needed
to recover and recycle your air conditioning
system refrigerant.
Contact an INFINITI retailer when servicing
your air conditioning system.
Technical and consumer information9-7

9-8Technical and consumer information
ENGINE
ModelVK56VDVQ37VHR
Type Gasoline, 4-cycleGasoline, 4-cycle
Cylinder arrangement 8-cylinder, V-slanted at 90
86-cylinder, V-slanted at 60 8
Bore 6Stroke in (mm) 3.858
63.622
(98.0 692.0) 3.760
63.385
(95.5 686.0)
Displacement cu in (cm
3) 338.78 (5,552) 225.54 (3,696)
Firing order 1-8-7-3-6-5-4-21-2-3-4-5-6
Idle speed rpm
No adjustment is necessary.
Ignition timing
(B.T.D.C.) degree/rpm
Spark plug DILKAR7B11FXE24HR11
Spark plug gap
(Normal) in (mm)
0.043 (1.1) 0.043 (1.1)
Camshaft operation Timing chainTiming chain
This spark ignition system complies with the Canadian standard ICES-002.
STI0397B
VK56VD engine
STI0425
VQ37VHR engine
SPECIFICATIONS

WHEELS AND TIRES
Road wheel
TypeSize Offset in (mm)
Conventional 18
68J 1.69 (43)
20 69J 1.69 (43)
Spare 17
64T
18 64T 1.18 (30)
0 (0)
Tire
Type
Size Pressure PSI (kPa) [Cold]
Conventional P245/50R18
33 (230)
245/40R20
Spare (T-type) T165/80R17
T165/80D17
T155/80R18
60 (420)
Technical and consumer information9-9

9-10Technical and consumer information
DIMENSIONS
in (mm)
Overall length (with front license plate) 194.7 (4,945)
Overall length (without front license plate) 194.5 (4,940)
Overall width 72.6 (1,845)
Overall height 59.1 (1,500)*1*2
59.6 (1,515)*3
Front tread 62.0 (1,575)
Rear tread 61.8 (1,570)*1*2
61.6 (1,565)*3
Wheelbase 114.2 (2,900)
*1:
Two-Wheel Drive (2WD)/18-in tire models
*2:Two-Wheel Drive (2WD)/20-in tire models
*3:Intelligent All-Wheel Drive (AWD) models

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
vehicle to another country, state, province
or district, it may be necessary to modify
the vehicle to meet local laws and regula-
tions.
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 registered, its modifications, trans-
portation, and registration are the respon-
sibility of the user. INFINITI is not
responsible for any inconvenience that
may result.
STI0716
VEHICLE IDENTIFICATION NUMBER
(VIN) PLATE
The vehicle identification number plate is
attached as shown. This number is the
identification for your vehicle and is used
in the vehicle registration.
STI0717
VEHICLE IDENTIFICATION NUMBER
(chassis number)
The number is stamped as shown in the
engine compartment.
Technical and consumer information9-11
WHEN TRAVELING OR REGISTERING YOUR
VEHICLE IN ANOTHER COUNTRY VEHICLE IDENTIFICATION

9-12Technical and consumer information
STI0584
VK56VD engine
STI0509
VQ37VHR engine
ENGINE SERIAL NUMBER
The number is stamped on the engine as
shown.
STI0718
F.M.V.S.S./C.M.V.S.S. CERTIFICA-
TION LABEL
The Federal/Canadian Motor Vehicle Safety
Standards (F.M.V.S.S./C.M.V.S.S.) certifica-
tion label is affixed as shown. This label
contains valuable vehicle information, such
as: Gross Vehicle Weight Ratings (GVWR),
Gross Axle Weight Rating (GAWR), month
and year of manufacture, Vehicle Identifi-
cation Number (VIN), etc. Review it care-
fully.

STI0719
EMISSION CONTROL INFORMATION
LABEL
The emission control information label is
attached as shown.
STI0720
TIRE AND LOADING INFORMATION
LABEL
The cold tire pressure is shown on the Tire
and Loading Information label affixed to
the pillar as illustrated.
STI0721
AIR CONDITIONER SPECIFICATION
LABEL
The air conditioner specification label is
attached as shown.
Technical and consumer information9-13