engine INFINITI G37 2010 Owners Manual

● Waste oil must be disposed of properly.
● Check your local regulations.
4. (Perform steps 4 to 7 only when the
engine oil filter change is needed.)
Loosen the oil filter
 2
with an oil filter
wrench. Remove the oil filter by turning it by
hand.
5. Wipe the engine oil filter mounting sur-
face with a clean rag. CAUTIONBe sure to remove any old rubber gasket re-
maining on the mounting surface of the engine.
Failure to do so could lead to engine damage.
6. Coat the gasket on the new filter with
clean engine oil.
7. Screw in the oil filter clockwise until a
slight resistance is felt, then tighten ad-
ditionally more than 2/3 turn.
Oil filter tightening torque:
11 to 15 ft-lb
(14.7 to 20.5 N·m)
8. Clean and re-install the drain plug with a
new washer. Securely tighten the drain
plug with a wrench.
Drain plug tightening torque:
22 to 29 ft-lb
(29 to 39 N·m)
Do not use excessive force.
9. Refill engine with recommended oil and
install the oil filler cap securely.
See “CAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS” in the “9. Technical and
consumer information” section for drain and
refill capacity. The drain and refill capacity depends on the oil temperature and drain time.
Use these specifications for reference only.
Always use the dipstick to determine the proper
amount of oil in the engine.
10. Start the engine and check for leakage
around the drain plug and the oil filter.
Correct as required.
11. Turn the engine off and wait more than 15
minutes. Check the oil level with the
dipstick. Add engine oil if necessary.
After the operation 1. Install the engine undercover into position
as the following steps.
a. Pull the center of the small plastic clip
out.
b. Hold the engine undercover into position.
c. Insert the clip through the undercover into
the hole in the frame, then push the
center of the clip in to lock the clip in
place.
d. Install the other bolts that hold the un-
dercover in place. Be careful not to strip
the bolts or over-tighten them.
2. Lower the vehicle carefully to the ground.
3. Dispose of waste oil and filter properly.All-wheel drive (AWD) models SDI2047
8-10 Maintenance and do-it-yourself
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WARNING● Prolonged and repeated contact with used
engine oil may cause skin cancer.
● Try to avoid direct skin contact with used oil.
If skin contact is made, wash thoroughly
with soap or hand cleaner as soon as
possible.
● Keep used engine oil out of reach of children. When checking or replacement is required, we
recommend an INFINITI retailer for servicing.
CAUTION● Use only Genuine NISSAN Matic S ATF. Do
not mix with other fluids.
● 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.
Check the fluid level in the reservoir.
The fluid level should be checked using the HOT
range (
 1
: HOT MAX.,
 2
: HOT MIN.) at fluid
temperatures of 122 to 176°F (50 to 80°C) or
using the COLD range (
 3
: COLD MAX.,
 4
:
COLD MIN.) at fluid temperatures of 32 to 86°F
(0 to 30°C).
If the fluid is below the MIN line, add Genuine
NISSAN PSF or equivalent. Remove the cap and
fill through the opening.
CAUTION● Do not overfill.
● Use Genuine NISSAN PSF or equivalent. SDI1765A
AUTOMATIC TRANSMISSION FLUID POWER STEERING FLUID
Maintenance and do-it-yourself
8-11
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WARNINGAntifreeze is poisonous and should be stored
carefully in marked containers out of the reach
of children.
Fill the window washer fluid reservoir periodi-
cally. Add window washer fluid when the low
window washer fluid warning light comes on.
To fill the window washer fluid reservoir, lift the
cap off the reservoir tank and pour the window
washer fluid into the tank opening.
Add a washer solvent to the washer for better
cleaning. In the winter season, add a wind-
shield washer antifreeze. Follow the manufac-
turer’s instructions for the mixture ratio. Refill the reservoir more frequently when driv-
ing conditions require an increased amount of
window washer fluid.
Recommended fluid is Genuine NISSAN Wind-
shield Washer Concentrate Cleaner & Antifreeze
or equivalent.
CAUTION● Do not substitute engine anti-freeze coolant
for window washer solution. This may result
in damage to the paint.
● Do not fill the window washer reservoir tank
with washer fluid concentrates at full
strength. Some methyl alcohol based
washer fluid concentrates may permanently
stain the grille if spilled while filling the win-
dow washer reservoir tank.
● Pre-mix washer fluid concentrates with wa-
ter to the manufacturer’s recommended lev-
els before pouring the fluid into the window
washer reservoir tank. Do not use the win-
dow washer reservoir tank to mix the washer
fluid concentrate and water. ● Keep the battery surface clean and dry.
Clean the battery with a solution of baking
soda and water.
● Make certain the terminal connections are
clean and securely tightened.
● If the vehicle is not to be used for 30 days or
longer, disconnect the negative (  ) battery
terminal cable to prevent discharging it.
COUPE CAUTIONWhen the battery cable is removed from the
battery terminal, do not close either of front
doors. The automatic window adjusting func-
tion will not work, and the side roof panel may
be damaged.
To disconnect the negative (  ) battery terminal,
perform the procedure in the following order.
Otherwise, the window and the side roof panel
may contact and be damaged.
1. Close the windows.
2. Open the hood.
3. Close and lock all the doors.
4. Disconnect the negative (  ) battery termi-
nal.
5. Securely close the hood.SDI2027
WINDOW WASHER FLUID BATTERY
Maintenance and do-it-yourself
8-13
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1. Remove the cell plugs
 A
.
2. Add distilled water up to the UPPER LEVEL
 1
line.
If the side of the battery is not clear, check
the distilled water level by looking directly
above the cell; the condition
 1
indicates
OK and the conditions
 2
needs more to be
added.
3. Tighten cell plugs
 A
.
Vehicles operated in high temperatures or un-
der severe conditions require frequent checks
of the battery fluid level. JUMP STARTING If jump starting is necessary, see “JUMP START-
ING” in the “6. In case of emergency” section. If
the engine does not start by jump starting, the
battery may have to be replaced. Contact an
INFINITI retailer. CAUTION● Do not ground accessories directly to the
battery terminal. Doing so will bypass the
variable voltage control system and the ve-
hicle battery may not charge completely.
● Use electrical accessories with the engine
running to avoid discharging the vehicle
battery.
The variable voltage control system measures
the amount of electrical discharge from the
battery and controls voltage generated by the
generator.SDI1480C
VARIABLE VOLTAGE CONTROL SYSTEM
Maintenance and do-it-yourself
8-15
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1. Power steering fluid pump
2. Alternator
3. Crankshaft pulley
4. Air conditioner compressor
5. Drive belt auto-tensioner
WARNINGBe sure the ignition switch is in the OFF or LOCK
position before servicing drive belts. The en-
gine could rotate unexpectedly. 1. Visually inspect each belt for signs of
unusual wear, cuts, fraying or looseness.
If the belt is in poor condition or loose,
have it replaced or adjusted by an INFINITI
retailer.
2. Have the belts checked regularly for con-
dition and tension in accordance with the
maintenance schedule in your “INFINITI
Service and Maintenance Guide”. WARNINGBe sure the engine and the ignition switch are
off and that the parking brake is engaged
securely.
CAUTIONBe sure to use the correct socket to remove the
spark plugs. An incorrect socket can damage
the spark plugs.
VQ37VHR engine SDI2119
DRIVE BELTS SPARK PLUGS
8-16 Maintenance and do-it-yourself
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REPLACING SPARK PLUGS If replacement is required, see an INFINITI re-
tailer for servicing.
Iridium-tipped spark plugs It is not necessary to replace the iridium-tipped
spark plugs as frequently as the conventional
type spark plugs since they will last much
longer. Follow the maintenance schedule in
“INFINITI Service and Maintenance Guide”, but
do not reuse them by cleaning or regapping.
Always replace spark plugs with recommended
or equivalent ones. Remove the retainers
 1
as illustrated and pull
out the filter element
 2
.
The filter element should not be cleaned and
reused. Replace it according to the mainte-
nance intervals. See “INFINITI Service and Main-
tenance Guide” for maintenance intervals. When replacing the filter, wipe the inside of the
air cleaner housing and the cover with a damp
cloth.
WARNING● Operating the engine with the air cleaner
removed can cause you or others to be
burned. The air cleaner not only cleans the
air, it stops 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 work-
ing on the engine with the air cleaner
removed.
● Never pour fuel into the throttle body or at-
tempt to start the engine with the air cleaner
removed. Doing so could result in serious
injury.SDI2020
SDI2033AIR CLEANER
Maintenance and do-it-yourself
8-17
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ENGINE COMPARTMENT CAUTIONNever use a fuse of a higher or lower amperage
rating than that specified on the fuse box cover.
This could damage the electrical system or
cause a fire.
If any electrical equipment does not operate,
check for an open fuse.
1. Be sure the ignition switch is pushed to
the OFF or LOCK position and the head-
light switch is turned to OFF. 2. Open the engine hood and remove the
cover on the battery and the fuse/fusible
link holder.
3. Remove the fuse/fusible link holder
cover.
4. Remove the fuse with the fuse puller.
5. If the fuse is open
 A
, replace it with a
new fuse
 B
. Spare fuses are stored in the
passenger compartment fuse box.
6. If a new fuse also opens, have the elec-
trical system checked and repaired by an
INFINITI retailer.SDI1479A SDI1754
FUSES
8-20 Maintenance and do-it-yourself
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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 .................................... 9-11
When traveling or registering your vehicle in
another country ................................... 9-11
Vehicle identification ............................. 9-12
Vehicle Identification Number (VIN) plate ........ 9-12
Vehicle identification number (chassis
number) ...................................... 9-12
Engine serial number .......................... 9-12
F.M.V.S.S./C.M.V.S.S. certification label ......... 9-13
Emission control information label .............. 9-13
Tire and loading information label .............. 9-14
Air conditioner specification label ............... 9-14
Installing front license plate ........................ 9-15
Sedan ......................................... 9-15 Coupe ........................................ 9-17
Vehicle loading information ....................... 9-17
Terms ........................................ 9-17
Vehicle load capacity .......................... 9-19
Loading tips .................................. 9-20
Measurement of weights ....................... 9-21
Towing a trailer .................................. 9-21
Flat towing ................................... 9-21
Uniform tire quality grading ....................... 9-22
Treadwear .................................... 9-22
Traction AA, A, B and C ........................ 9-22
Temperature A, B and C ....................... 9-22
Emission control system warranty ................. 9-23
Reporting safety defects (US only) ................. 9-23
Readiness for Inspection/Maintenance (I/M) test
(US only) ........................................ 9-24
Event Data Recorders (EDR) ....................... 9-25
Owner’s Manual/Service Manual order
information ...................................... 9-25
In the event of a collision ...................... 9-26
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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 measure Liter
Fuel 20 gal 16-5/8 gal 76 See “FUEL RECOMMENDATION” later in this section.
Engine oil*2
Drain and refill
With oil filter change 5-1/8 qt 4-3/8 qt 4.9 •Engine oil with API Certification Mark*1*2
•Viscosity SAE 5W-30
Without oil filter change 4-7/8 qt 4 qt 4.6
Cooling system
Automatic transmission
model With reservoir 9 qt 7-1/2 qt 8.5 50% Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent
50% Demineralized or distilled water
Reservoir 7/8 qt 3/4 qt 0.8
Manual transmission
model With reservoir 9-1/8 qt 7-5/8 qt 8.6
Reservoir 7/8 qt 3/4 qt 0.8
Automatic transmission fluid — — — Genuine NISSAN Matic S ATF*3
Manual transmission gear oil — — — Genuine NISSAN Manual Transmission Fluid (MTF)
HQ Multi 75W-85 or API GL-4, Viscosity SAE 75W-85
Differential gear oil — — — Front:
Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or API GL-5
Viscosity SAE 80W-90*4
Rear:
For 7AT 2WD models:
Genuine NISSAN Differential Oil Synthetic 75W-90 or API GL-5 synthetic
gear oil, Viscosity SAE 75W-90*5
All other models:
Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or API GL-5
Viscosity SAE 80W-90*4
Transfer fluid — — — Genuine NISSAN Matic J ATF*6
Power steering fluid (PSF) Refill to the proper oil level according to the in-
structions in the “8. Maintenance and do-it-
yourself” section. Genuine NISSAN PSF or equivalent*7
Brake and clutch fluid Genuine NISSAN Super Heavy Duty Brake Fluid*8 or equivalent DOT 3
Multi-purpose grease
Without limited slip differential
NLGI No. 2 (Lithium soap base)
With limited slip differential
Air conditioning system refrigerant — — — HFC-134a (R-134a)*9
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
equivalentCAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS
9-2 Technical and consumer information
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*1: INFINITI recommends Genuine NISSAN Ester Engine Oil available at your INFINITI retailer.
*2: For additional information, see “ENGINE OIL” in the “8. Maintenance and do-it-yourself” section for changing engine oil.
*3: 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.
*4: For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 32°F (0°C).
*5: See an INFINITI retailer for service for synthetic oil.
*6: Using transfer fluid other than Genuine NISSAN Matic J ATF will cause deterioration in driveability and transfer durability, and may damage the
transfer, which is not covered by the INFINITI new vehicle limited warranty.
*7: DEXRON TM
VI type ATF may also be used.
*8: Available in mainland US through an INFINITI retailer.
*9: For additional information, see “VEHICLE IDENTIFICATION” later in this section for air conditioner specification label.
Technical and consumer information
9-3
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