engine oil INFINITI G 2011 User Guide

8 Maintenance and do-it-yourself
Maintenance requirement.......................... 8-2
Scheduled maintenance ........................ 8-2
General maintenance ........................... 8-2
Where to go for service ......................... 8-2
General maintenance .............................. 8-2
Explanation of maintenance items ............... 8-2
Maintenance precautions .......................... 8-5
Engine compartment check locations ................ 8-7
VQ25HR/VQ37VHR engine ....................... 8-7
Engine cooling system ............................. 8-8
Checking engine coolant level ................... 8-9
Changing engine coolant ........................ 8-9
Engine oil ........................................ 8-9
Checking engine oil level ......................8-10
Changing engine oil and filter ..................8-10
Automatic transmission fluid ......................8-12
Power steering fluid .............................. 8-12
Brake and clutch fluid ............................ 8-13
Brake fluid ................................... 8-13
Clutch fluid (if so equipped) ....................8-13
Window washer fluid ............................. 8-14Battery
.......................................... 8-14
Coupe ........................................ 8-14
Sedan and coupe ............................. 8-15
Jump starting ................................. 8-16
Variable voltage control system ...................8-16
Drive belts ....................................... 8-17
Spark plugs ..................................... 8-18
Replacing spark plugs ......................... 8-18
Air cleaner ....................................... 8-18
Windshield wiper blades .......................... 8-19
Cleaning ...................................... 8-19
Replacing ..................................... 8-20
Brakes .......................................... 8-21
Self-adjusting brakes .......................... 8-21
Brake pad wear warning ....................... 8-21
Fuses ........................................... 8-21
Engine compartment ........................... 8-21
Passenger compartment ....................... 8-23
Intelligent Key

battery replacement ................8-24

restraints move up and down smoothly and that
the locks (if so equipped) hold securely in all
latched positions.
Steering wheel:Check for changes in the steer-
ing conditions, such as excessive free play,
hard steering or strange noises.
Warning lights and chimes: Make sure that all
warning lights and chimes are operating prop-
erly.
Windshield defroster: Check that the air comes
out of the defroster outlets properly and in
sufficient quantity when operating the heater or
air conditioner.
Windshield wiper and washer*: Check that the
wipers and washer operate properly and that
the wipers do not streak.
Under the hood and vehicle
The maintenance items listed here should be
checked periodically (for example, each time
you check the engine oil or refuel).
Battery*: Check the fluid level in each cell. It
should be between the MAX and MIN lines.
Vehicles operated in high temperatures or un-
der severe condition require frequent checks of
the battery fluid level. Brake fluid level*:
Make sure that the brake
fluid level is between the MAX and MIN lines on
the reservoir.
Engine coolant level*: Check the coolant level
when the engine is cold.
Engine drive belts*: Make sure that no belt is
frayed, worn, cracked or oily.
Engine oil level*: Check the level after parking
the vehicle on a level spot and turning off the
engine. Wait more than 15 minutes for the oil to
drain back into the oil pan.
Exhaust system: Make sure there are no loose
supports, cracks or holes. If the sound of the
exhaust seems unusual or there is a smell of
exhaust fumes, immediately have the exhaust
system inspected by an INFINITI retailer. (See
“PRECAUTIONS WHEN STARTING AND DRIVING”
in the “5. Starting and driving” section for
exhaust gas (Carbon monoxide).)
Fluid leaks: Check under the vehicle for fuel, oil,
water or other fluid leaks after the vehicle has
been parked for a while. Water dripping from
the air conditioner after use is normal. If you
should notice any leaks or if gasoline fumes are
evident, check for the cause and have it cor-
rected immediately. Power steering fluid level* and lines:
Check the
level when the fluid is cold, with the engine off.
Check the lines for proper attachment, leaks,
cracks, etc.
Radiator and hoses: Check the front of the
radiator and clean off any dirt, insects, leaves,
etc., that may have accumulated. Make sure the
hoses have no cracks, deformation, rot or loose
connections.
Underbody: The underbody is frequently ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances, other-
wise rust will form on the floor pan, frame, fuel
lines and around the exhaust system. At the
end of winter, the underbody should be thor-
oughly flushed with plain water, being careful
to clean those areas where mud and dirt may
accumulate. For additional information, see
“CLEANING EXTERIOR” in the “7. Appearance
and care” section.
Windshield washer fluid*: Check that there is
adequate fluid in the reservoir.
8-4Maintenance and do-it-yourself

When performing any inspection or mainte-
nance work on your vehicle, always take care to
prevent serious accidental injury to yourself or
damage to the vehicle. The following are gen-
eral precautions which should be closely ob-
served.
WARNING
●Park the vehicle on a level surface, apply the
parking brake securely and block the wheels
to prevent the vehicle from moving. For
manual transmission models, move the shift
lever to N (Neutral). For automatic transmis-
sion models, move the selector lever to P
(Park).
● Be sure the ignition switch is in the OFF or
LOCK position when performing any parts
replacement or repairs.
● Never connect or disconnect the battery or
any transistorized component while the ig-
nition switch is in the ON position.
● Never leave the engine or automatic trans-
mission related component harnesses dis-
connected while the ignition switch is in the
ON position. ●
If you must work with the engine running,
keep your hands, clothing, hair and tools
away from moving fans, belts and any other
moving parts.
● It is advisable to secure or remove any loose
clothing and remove any jewelry, such as
rings, watches, etc. before working on your
vehicle.
● Always wear eye protection whenever you
work on your vehicle.
● If you must run the engine in an enclosed
space such as a garage, be sure there is
proper ventilation for exhaust gases to
escape.
● Never get under the vehicle while it is sup-
ported only by a jack. If it is necessary to
work under the vehicle, support it with
safety stands.
● Keep smoking materials, flame and sparks
away from fuel tank and the battery. ●
Your vehicle is equipped with an automatic
engine cooling fan. It may come on at any
time without warning, even if the ignition
key is in the OFF position and the engine is
not running. To avoid injury, always discon-
nect the negative battery cable before work-
ing near the fan.
● The fuel filter or fuel lines should be serviced
by an INFINITI retailer because the fuel lines
are under high pressure even when the en-
gine is off.
CAUTION
●Do not work under the hood while the engine
is hot. Turn the engine off and wait until it
cools down.
● Avoid direct contact with used engine oil and
coolant. Improperly disposed engine oil,
coolant, and/or other vehicle fluids can dam-
age the environment. Always conform to lo-
cal regulations for disposal of vehicle fluid.
MAINTENANCE PRECAUTIONS
Maintenance and do-it-yourself8-5

VQ25HR/VQ37VHR ENGINE
1. Fuse/fusible link holder
2. Battery
3. Engine oil filler cap
4. Brake fluid reservoir5. Clutch fluid reservoir (Manual Transmis-
sion models)
6. Window washer fluid reservoir
7. Power steering fluid reservoir
8. Air cleaner
9. Radiator filler cap 10. Drive belts
11. Engine coolant reservoir
12. Engine oil dipstick (for VQ37VHR engine
model)
13. Engine oil dipstick (for VQ25HR engine model)
SDI2709
ENGINE COMPARTMENT CHECK
LOCATIONS
Maintenance and do-it-yourself8-7

CHECKING ENGINE COOLANT LEVEL
Check the coolant levelin the reservoir when the
engine is cold. If the coolant level is below MIN
2, open the reservoir tank cap and add coolant
up to the MAX
1level. If the reservoir tank is
empty, check the coolant level in the radiator
when the engine is cold. If there is insufficient
coolant in the radiator, fill the radiator with
coolant up to the filler opening and also add it
to the reservoir tank up to the MAX level
1.
Tighten the cap securely after adding engine
coolant.
If the cooling system requires coolant fre-
quently, have it checked by an INFINITI retailer.
CHANGING ENGINE COOLANT
Major cooling system repairs should be per-
formed by an INFINITI retailer. The service pro-
cedures can be found in the appropriate INFINITI
Service Manual.
Improper servicing can result in reduced heater
performance and engine overheating.
WARNING
● To avoid the danger of being scalded, never
change the coolant when the engine is hot.
● Never remove the radiator cap when the en-
gine is hot. Serious burns could be caused by
high pressure fluid escaping from the
radiator.
● Avoid direct skin contact with used coolant.
If skin contact is made, wash thoroughly
with soap or hand cleaner as soon as
possible.
● Keep coolant out of reach of children and
pets.
Engine coolant must be disposed of properly.
Check your local regulations.
SDI2043
VQ25HR engine
SDI2505
VQ37VHR engine
SDI2045
ENGINE OIL
Maintenance and do-it-yourself8-9

CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface andapply the parking brake.
2. Run the engine until it reaches operating temperature.
3. Turn off the engine. Wait more than 15
minutes for the oil to drain back into the oil
pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way.
5. Remove the dipstick again and check the oil level. It should be within the range
1.
If the oil level is below
2, remove the oil
filler cap and pour recommended oil
through the opening. Do not overfill
3.
6. Recheck oil level with the dipstick.
It is normal to add some oil between oil mainte-
nance intervals or during the break-in period,
depending on the severity of operating condi-
tions.
CAUTION
Oil level should be checked regularly. Operat-
ing the engine with an insufficient amount of oil
can damage the engine, and such damage is
not covered by warranty.
CHANGING ENGINE OIL AND FILTER
Vehicle set-up
1. Park the vehicle on a level surface and apply the parking brake.
2. Run the engine until it reaches operating temperature.
3. Turn the engine off and wait more than 15 minutes.
4. Raise and support the vehicle using a suitable floor jack and safety jack stands.
●Place the safety jack stands under the
vehicle jack-up points.
● A suitable adapter should be attached to
the jack stand saddle.
5. Remove the plastic engine undercover.
a. Remove the small plastic clip at the center
point of the undercover.
b. Then remove the other bolts that hold the undercover in place.
CAUTION
Make sure the correct lifting and support
points are used to avoid vehicle damage.
Engine oil and filter
1. Place a large drain pan under the drainplug.
2. Remove the oil filler cap.
3. Remove the drain plug
1with a wrench
and completely drain the oil.
CAUTION
Be careful not to burn yourself, as the engine oil
is hot.
Two-wheel drive (2WD) models (VQ25HR/VQ37VHR engine)
SDI2335
8-10Maintenance and do-it-yourself

●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 filter2with 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.
CAUTION
Be 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 positionas 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(VQ25HR/VQ37VHR engine)
SDI2047
Maintenance and do-it-yourself8-11

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
8-12Maintenance and do-it-yourself

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 .................................. 9-12
Vehicle identification ............................. 9-12
Vehicle Identification Number (VIN) plate ........9-12
Vehicle identification number (chassis
number) ...................................... 9-12
Engine serial number .......................... 9-13
F.M.V.S.S./C.M.V.S.S. certification label .........9-13
Emission control information label ..............9-14
Tire and loading information label ..............9-14
Air conditioner specification label ...............9-14
Installing front license plate ........................9-15
Sedan ......................................... 9-15
Coupe (except for INFINITI Performance
Line, Aerodynamic Package models) ............9-17 Coupe (INFINITI Performance Line,
Aerodynamic Package models)
.................9-18
Vehicle loading information .......................9-19
Terms ........................................ 9-19
Vehicle load capacity .......................... 9-20
Loading tips .................................. 9-21
Measurement of weights ....................... 9-22
Towing a trailer .................................. 9-22
Flat towing ................................... 9-22
Uniform tire quality grading .......................9-23
Treadwear .................................... 9-23
Traction AA, A, B and C ........................ 9-23
Temperature A, B and C ....................... 9-23
Emission control system warranty .................9-24
Reporting safety defects .......................... 9-24
Readiness for Inspection/Maintenance (I/M) test
(US only) ........................................ 9-25
Event Data

Recorders (EDR) ....................... 9-26
Owner’s Manual/Service Manual order
information ...................................... 9-26
In the event of a collision ......................9-27

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 gal16-5/8 gal 76 See “FUEL RECOMMENDATION” later in this section.
Engine oil*2
Drain and refill With oil filter change 5-1/8 qt4-3/8 qt 4.9 •Engine oil with API Certification Mark*1*3
•Viscosity SAE 5W-30
Without oil filter change 4-7/8 qt4 qt 4.6
Cooling system (VQ37VHR) Automatic transmission
model With reservoir
9 qt7-1/2 qt 8.5 Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equiva-
lent
Reservoir 7/8 qt3/4 qt 0.8
Manual transmission
model With reservoir
9-1/8 qt7-5/8 qt 8.6
Reservoir 7/8 qt3/4 qt 0.8
Cooling system (VQ25HR) AWD With reservoir9-1/4 qt7-3/4 qt 8.8
Reservoir 7/8 qt3/4 qt 0.8
2WD With reservoir8-3/4 qt7-1/4 qt 8.3
Reservoir 7/8 qt3/4 qt 0.8
Automatic transmission fluid ——— Genuine NISSAN Matic S ATF*4
Manual transmission gear oil ——— Genuine NISSAN Manual Transmission Fluid (MTF)
HQ Multi 75W-85*5
Differential gear oil ——— For 7A/T 2WD models:
API GL-5 Synthetic Gear Oil Viscosity SAE 75W-90*7All other models:
Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or API GL-5,
Viscosity SAE 80W-90*6
Transfer fluid ——— Genuine NISSAN Matic J ATF*8
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*9
Brake and clutch fluid Genuine NISSAN Super Heavy Duty Brake Fluid*10 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)*11
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
CAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS
9-2Technical and consumer information