radiator INFINITI Q70 2018 User Guide

8-10Do-it-yourself
until it reaches normal operating tempera-
ture. Add coolant up to the MAX level.
Tighten the cap securely after adding engine
coolant.
If the cooling system requires coolant fre-
quently, have it checked. It is recommended
you visit an INFINITI retailer for this
service.
CHANGING ENGINE COOLANT
It is recommended that major cooling system
repairs 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 prop-
erly. Check your local regulations.
SDI2541
VK56VD engine
SDI2045
VQ37VHR engine
ENGINE OIL

9-4Maintenance and schedules
properly.
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
under severe condition require frequent
checks of the battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as:
1. Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances. In these cases, the battery may need to be
charged to maintain battery health.
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. It is recom-
mended you visit an INFINITI retailer for this
service. (See “Precautions when starting and
driving” (P.5-4) 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 corrected 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, defor-
mation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances, otherwise rust will form on the
floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the
underbody should be thoroughly flushed
with plain water, being careful to clean
those areas where mud and dirt may accu-
mulate. For additional information, see
“Cleaning exterior” (P.7-2).
Windshield washer fluid*: Check that there
is adequate fluid in the reservoir.

10-2Technical 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. Do-it yourself” section to determine the proper refill capacity.
Fluid typeCapacity (approximate)
Recommended Fluids/Lubricants
Metric
Measure US
Measure Imperial
Measure
Fuel 76 L 20-1/8 gal 16-3/4 galÂSee “Fuel information (for VK56VD engine model)” (P.10-6).
Engine oil
*1VQ37VHR With oil filter
change 4.9 L 5-1/8 qt 4-3/8 qt
ÂGenuine “Nissan Motor Oil Ester 5W-30 SN” is recommended.
 If the above motor oil is not available, use an equivalent motor oil that matches
the above grade and viscosity. For additional information, see “Engine oil and
oil filter recommendation” (P.10-9).
Drain and refill
*1: For additional in-
formation, see “En-
gine oil” (P.8-10) for
changing engine oil. Without oil filter
change
4.6 L 4-7/8 qt 4.0 qt
VK56VD 2WD With oil filter change6.0 L 6-3/8 qt 5-1/4 qt
Without oil filter
change 5.7 L 6.0 qt 5.0 qt
AWD With oil filter change 6.1 L 6-1/2 qt 5-3/8 qt
Without oil filter
change 5.8 L 6-1/8 qt 5-1/8 qt
Engine coolant VQ37VHR Reservoir0.8 L 7/8 qt 3/4 qt ÂPre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent
VK56VD
VQ37VHR Non-pressur- ized radiator
reservoir tank With reservoir 8.7 L 9-1/4 qt 7-5/8 qt
Pressurized ra-
diator reservoir
tank 9.3 L 9-7/8 qt 8-1/8 qt
VK56VD 10.9 L 11-1/2 qt 9-5/8 qt
Automatic transmission fluid (ATF) ———ÂGenuine NISSAN Matic S ATF
 INFINITI recommends using Genuine NISSAN Matic S ATF ONLY in INFINITI
automatic transmissions. Do not mix with other fluids. Using fluids that are not
equivalent to Genuine NISSAN Matic S ATF may damage the automatic
transmission. Damage caused by the use of fluids other than as recommended
is not covered under the INFINITI’s new vehicle limited warranty.
Differential gear oil Front ———ÂGenuine NISSAN Differential Oil Hypoid Super GL-5 80W- 90 or equivalent
conventional (non-synthetic) oil
Rear ———ÂGenuine NISSAN Differential Oil Hypoid Super-S GL-5 synthetic 75W-90 or
equivalent
CAPACITIES AND RECOMMENDED
FLUIDS/LUBRICANTS