cooling INFINITI G-COUPE 2012 User Guide

The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/Cool-
ant (blue) and 50% water to provide year-
round anti-freeze and coolant protection.
The antifreeze solution contains rust and
corrosion inhibitors. Additional engine
cooling system additives are not neces-
sary.
WARNING
.Never remove the radiator or coolant
reservoir cap when the engine is hot.
Wait until the engine and radiator cool
down. Serious burns could be caused by
high pressure fluid escaping from the
radiator. See precautions in “If your
vehicle overheats” (P.6-10) of this man-
ual.
. The radiator is equipped with a pressure
type radiator cap. To prevent engine
damage, use only a genuine NISSAN
radiator cap.
CAUTION
.Never use any cooling system additives
such as radiator sealer. Additives may
clog the cooling system and cause
damage to the engine, transmission
and/or cooling system.
. When adding or replacing coolant, be
sure to use only Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or equiva-
lent. Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) is pre-diluted to
provide antifreeze protection to −348F
(−378C). If additional freeze protection is
needed due to weather where you
operate your vehicle, add Genuine
NISSAN Long Life Antifreeze/Coolant
(blue) concentrate following the direc-
tions on the container. If an equivalent
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is used,
follow the coolant manufacturer’ s in-
structions to maintain minimum anti-
freeze protection to −348F(−378C). The
use of other types of coolant solutions
other than Genuine NISSAN Long Life
Antifreeze/Coolant (blue) or equivalent
may damage the engine cooling system. .
The life expectancy of the factory-fill
coolant is 105,000 miles (168,000 km)
or 7 years. Mixing any other type of
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue), including
Genuine NISSAN Long Life Antifreeze/
Coolant (green), or the use of non-
distilled water will reduce the life
expectancy of the factory-fill coolant.
Refer to the INFINITI Service and Main-
tenance Guide for more details.
Maintenance and do-it-yourself8-9
ENGINE COOLING SYSTEM

8-10Maintenance and do-it-yourself
SDI2043
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
*1
level. 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
frequently, have it checked by an INFINITI
retailer.
CHANGING ENGINE COOLANT
Major cooling system repairs should be
performed by an INFINITI retailer. The
service procedures can be found in the
appropriate INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
.
To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
. Never remove the radiator cap when the
engine 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.

9-2Technical and consumer information
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” (P.9-4).
Engine oil (VQ37VHR)*1
.Engine oil with API Certification Mark*2*3
. Viscosity SAE 5W-30
Drain and refill
With oil filter change 5-1/8 qt4-3/8 qt 4.9
Without oil filter change 4-7/8 qt4 qt4.6
Engine oil (VQ25HR)*1
Drain and refill With oil filter change 5 qt4-1/8 qt 4.7
Without oil filter change 4-5/8 qt3-7/8 qt 4.4
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 equivalent
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 reservoir
9-1/4 qt7-3/4 qt 8.8
Reservoir 7/8 qt3/4 qt 0.8
2WD With reservoir
8-3/4 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 or API GL-4, Viscosity SAE 75W-85
Differential gear oil ———For 7A/T 2WD models:
API GL-5 Synthetic Gear Oil Viscosity SAE 75W-90*6
All other models:
Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or API GL-5, Viscosity SAE
80W-90*5
Transfer fluid ———Genuine NISSAN Matic J ATF*7
CAPACITIES AND RECOMMENDED FUEL/
LUBRICANTS

10-2
C
Cabin air filter ................................................... 4-40
Capacities and recommended fuel/lubricants ...... 9-2
Car phone or CB radio ...................................... 4-89
Card holder ....................................................... 2-49
Cargo net retainers ........................................... 2-51
Catalytic converter, Three way catalyst ................ 5-4
CD/CF/USB memory care and cleaning ............. 4-86
Center multi-function control panel ..................... 4-3
Child restraints ................................................. 1-23LATCH system .............................................. 1-25
Precautions on child restraints ..................... 1-23
Child safety ...................................................... 1-21
Child safety rear door lock .................................. 3-6
Chimes Audible reminders ....................................... 2-19
Seat belt warning light and chime ............... 2-17
Cigarette lighter and ashtrays ........................... 2-44
Circuit breaker, Fusible link............................... 8-24
Cleaning exterior and interior ....................... 7-2, 7-4
Climate control, Automatic climate control ........ 4-31
Clock ................................................................ 2-42
Clutch fluid ....................................................... 8-15
Coat hooks ....................................................... 2-50
Cockpit ............................................................... 2-3
Cold weather driving ......................................... 5-58
Compact Disc (CD) player (See audio system) ... 4-60
Compact spare tire ........................................... 8-43
Compass ............................................................. 2-9
Console box ...................................................... 2-48 Controller, Center multi-function control panel .... 4-5
Controls
Control panel button ...................................... 4-3
INFINITI Controller .......................................... 4-5
Coolant Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine coolant ............................. 8-10
Checking engine coolant level ...................... 8-10
Corrosion protection ........................................... 7-6
Cruise control ................................................... 5-21 Fixed speed cruise control (on ICC system) ... 5-41
Intelligent cruise control (ICC) system .......... 5-23
Cup holders ...................................................... 2-45
Current fuel consumption .................................. 2-26
D
Daytime running light system ........................... 2-37
Defroster switch, Rear window and outside mirror
defroster switch ................................................ 2-34
Dimensions ....................................................... 9-11
Distance to empty ............................................. 2-26
Door/trunk open warning .................................. 2-23
Dot matrix liquid crystal display ....................... 2-20
Drive belts ........................................................ 8-19
Drive positioner ................................................ 3-31
Driving All-wheel drive (AWD) ................................... 5-45
Cold weather driving .................................... 5-58
Driving with automatic transmission ............ 5-14
Driving with manual transmission ................ 5-18 Precautions when starting and driving ........... 5-3
DS (Drive Sport) mode ...................................... 5-16
DVD player operation ........................................ 4-62
E
Economy, Fuel ................................................... 5-45
Elapsed time ..................................................... 2-26
Elapsed time and trip odometer ........................ 2-26
Emission control information label .................... 9-13
Emission control system warranty ..................... 9-25
Engine Before starting the engine ........................... 5-12
Break-in schedule ........................................ 5-45
Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine coolant ............................. 8-10
Changing engine oil and filter ...................... 8-11
Checking engine coolant level ...................... 8-10
Checking engine oil level ............................. 8-11
Coolant temperature gauge ............................ 2-8
Emergency engine shut off ........................... 5-11
Engine compartment check locations ............. 8-8
Engine cooling system ................................... 8-9
Engine oil .................................................... 8-11
Engine oil and oil filter recommendation ........ 9-6
Engine oil replacement indicator .................. 2-24
Engine oil viscosity ........................................ 9-7
Engine serial number ................................... 9-12
Engine specifications ..................................... 9-8
Engine start operation indicator (Automatic
Transmission models) .................................. 2-22