engine oil INFINITI Q50 2018 Owner's Guide

The following descriptions are provided to
give you a better understanding of the
scheduled maintenance items that should
be regularly checked or replaced. The main-
tenance schedule indicates at which mile-
age/time intervals each item requires
service.
In addition to scheduled maintenance, your
vehicle requires that some items be checked
during normal day-to-day operation. Refer
to “General maintenance” (P.9-2).
Items marked with “*” are recommended by
INFINITI for reliable vehicle operation. You
are not required to perform maintenance on
these items in order to maintain the warran-
ties which come with your vehicle. Other
maintenance items and intervals are re-
quired.
When applicable, additional information can
be found in the “8. Do-it yourself” section of
this manual.
NOTE:
INFINITI does not advocate the use of non-
OEM approved aftermarket flushing sys-
tems and strongly advises against perform-
ing these services on an INFINITI product.
Many of the aftermarket flushing systems
use non-OEM approved chemicals or sol-
vents, the use of which has not been
validated by INFINITI.For recommended fuel, lubricants, fluids,
grease, and refrigerant, refer to “Capacities
and recommended fluids/lubricants” (P.10-
2) of this manual.
EMISSION CONTROL SYSTEM
MAINTENANCE
Drive belts*:
Check engine drive belts for wear, fraying or
cracking and for proper tension. Replace any
damaged drive belts.
Engine air filter:
Replace at specified intervals. When driving
for prolonged periods in dusty conditions,
check/replace the filter more frequently.
Engine coolant* (for VR30DDTT engine
models):
Replace coolant at the specified interval.
When adding or replacing coolant, be sure to
use only Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) or equivalent with the
proper mixture. (Refer to “Engine cooling
system (for VR30DDTT engine models)”
(P.8-6) to determine the proper mixture for
your area.)
NOTE:
Mixing any other type of coolant or the use
of non-distilled water may reduce the
recommended service interval of the cool-
ant.Engine coolant* (for 2.0L turbo gasoline
engine models):
Replace coolant at the specified interval.
When adding or replacing coolant, be sure to
use only BASF Glysantin® G48® or equiva-
lent with the proper mixture. (Refer to
“Engine cooling system (for 2.0L turbo
gasoline engine models)” (P.8-8) to deter-
mine the proper mixture for your area.)
NOTE:
Mixing any other type of coolant or the use
of non-distilled water may reduce the
recommended service interval of the cool-
ant.
Intercooler coolant (for VR30DDTT engine
models):
Intercooler coolant is maintenance-free.
Engine oil and oil filter:
Replace engine oil and oil filter at the
specified intervals. For recommended oil
grade and viscosity refer to “Capacities and
recommended fluids/lubricants” (P.10-2).
Engine valve clearance*:
Inspect only if valve noise increases. Adjust
valve clearance if necessary.
Evaporative emissions control vapor lines*:
Check vapor lines for leaks or looseness.
Tighten connections or replace parts as
necessary.
Maintenance and schedules9-5
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS

.Operating in hot weather in stop-and-go
“rush hour” traffic.
. Extensive idling and/or low speed driving
for long distances, such as police, taxi or
door-to-door delivery use.
. Driving in dusty conditions.
. Driving on rough, muddy or salt spread
roads.
. Using a car-top carrier.
NOTE:
For vehicles operated in Canada, both
standard and severe maintenance items
should be performed at every interval.
OIL CONTROL SYSTEM (for
VR30DDTT engine models)
Your vehicle is equipped with oil control
system. It calculates engine oil and filter
change interval based on driving conditions.
Driving in severe conditions will shorten the
engine oil and filter change interval. When
the oil replacement indicator appears in the
vehicle information display, the engine oil
and filter need to be replaced. The following tables show the standard
maintenance schedule. Depending upon
weather and atmospheric conditions, vary-
ing road surfaces, individual driving habits
and vehicle usage, additional or more fre-
quent maintenance may be required.
After 120,000 miles (192,000 km)/144
months, continue maintenance at the same
mileage/time intervals.
Maintenance and schedules9-7
STANDARD MAINTENANCE

9-8Maintenance and schedules
EMISSION CONTROL SYSTEM MAINTENANCE (for VR30DDTT engine)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OP-
ERATION
Perform at number of
miles, kilometers or
months, whichever
comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
5
(8) 6 10
(16) 12 15
(24) 18 20
(32) 24 25
(40) 30 30
(48) 36 35
(56) 42 40
(64) 48 45
(72) 54 50
(80) 60 55
(88) 66 60
(96) 72
Drive belts See NOTE (1) I*I* I*
Air cleaner filter See NOTE (2) RR
EVAP vapor lines I*I* I*
Fuel lines I*I* I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4) (5)
Engine oil See NOTE (6) RR RR R R
Engine oil filter See NOTE (6) RR RR R R
Spark plugs See NOTE (7) Replace every 105,000 miles (168,000 km)
Intake and exhaust valve
clearance* See NOTE (8)

MAINTENANCE OP-
ERATION
Perform at number of
miles, kilometers or
months, whichever
comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
65
(104) 78 70
(112) 84 75
(120) 90 80
(128) 96 85
(136) 102 90
(144) 108 95
(152) 114 100
(160) 120 105
(168) 126 110
(176) 132 115
(184) 138 120
(192) 144
Drive belts See NOTE (1) I*I*I*I* I* I*
Air cleaner filter See NOTE (2) RR
EVAP vapor lines I*I* I*
Fuel lines I*I* I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4) (5)
Engine oil See NOTE (6) RRRR R R
Engine oil filter See NOTE (6) RRRR R R
Spark plugs See NOTE (7) Replace every 105,000 miles (168,000 km)
Intake and exhaust valve
clearance* See NOTE (8)
NOTE:
(1) After 40,000 miles (64,000 km) or 48
months, inspect every 10,000 miles
(16,000 km) or 12 months. Replace the
drive belts if found damaged.
(2) If operating mainly in dusty conditions,
more frequent maintenance may be re-
quired.
(3) Periodic maintenance is not required.
(4) First replacement interval is 105,000
miles (168,000 km) or 84 months. After first replacement, replace every 75,000
miles (120,000 km) or 60 months.
(5) Use only Genuine NISSAN Long Life
Antifreeze/Coolant (blue) or equivalent
with proper mixture ratio of 50% anti-
freeze and 50% demineralized or distilled
water. Mixing any other type of coolant or
the use of non-distilled water may reduce
the life expectancy of the factory fill cool-
ant.
(6) If the oil replacement indicator is
displayed, change the engine oil and filteras soon as possible. After replacing the
engine oil, reset the display.
(7) Replace spark plug when the plug gap
exceeds 0.043 in (1.1 mm) even if within
specified replacement mileage.
(8) Periodic maintenance is not required.
However, if valve noise increases, inspect
valve clearance.
*: Maintenance items and intervals with “*”
are recommended by INFINITI for reliable
vehicle operation. The owner need not to
Maintenance and schedules9-9

EMISSION CONTROL SYSTEM MAINTENANCE (for 2.0L turbo gasoline engine)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OP-
ERATION
Perform at number of
miles, kilometers or
months, whichever
comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
5
(8) 6 10
(16) 12 15
(24) 18 20
(32) 24 25
(40) 30 30
(48) 36 35
(56) 42 40
(64) 48 45
(72) 54 50
(80) 60 55
(88) 66 60
(96) 72
Engine compartment See NOTE (1) II I
V-belt See NOTE (2) I*I* I*
Air cleaner filter Replace every 45,000 miles (72,000 km) or 36 months
Fuel lines I*I* I*
Fuel filter See NOTE (3)
Engine coolant* Replace every 120,000 miles (192,000 km) or 120 months
Engine oil RR RR R R
Engine oil filter RR RR R R
Spark plugs Replace every 45,000 miles (72,000 km) or 36 months
Maintenance and schedules9-11

9-12Maintenance and schedules
MAINTENANCE OP-
ERATION
Perform at number of
miles, kilometers or
months, whichever
comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
65
(104) 78 70
(112) 84 75
(120) 90 80
(128) 96 85
(136) 102 90
(144) 108 95
(152) 114 100
(160) 120 105
(168) 126 110
(176) 132 115
(184) 138 120
(192) 144
Engine compartment See NOTE (1) II I
V-belt See NOTE (2) I*I* I*
Air cleaner filter Replace every 45,000 miles (72,000 km) or 36 months
Fuel lines I*I* I*
Fuel filter See NOTE (3)
Engine coolant* Replace every 120,000 miles (192,000 km) or 120 months
Engine oil RRRR R R
Engine oil filter RRRR R R
Spark plugs Replace every 45,000 miles (72,000 km) or 36 months
NOTE:
(1) All visible parts checked for leaks and
damage.
(2) In visible area only.
(3) Periodic maintenance is not required.
*: Maintenance items and intervals with “*”
are recommended by INFINITI for reliable
vehicle operation. The owner need not to
perform such maintenance in order to
maintain the emission warranty or manu-
facturer recall liability. Other maintenance
items and intervals are required.

10 Technical and consumer information
Capacities and recommended fluids/lubricants...... 10-2Fuel information (for VR30DDTT
engine model).............................................................. 10-4
Fuel information (for 2.0L turbo gasoline
engine model)............................................................... 10-6
Engine oil and oil filter recommendation............ 10-8
Air conditioning system refrigerant and
lubricant recommendations .................................. 10-10
Specifications.................................................................. 10-11 Engine........................................................................\
.. 10-11
Wheels and tires ...................................................... 10-12
Dimensions ................................................................ 10-13
When traveling or registering in
another country............................................................. 10-14
Vehicle identification.................................................... 10-14 Vehicle Identification Number (VIN) plate ....... 10-14
Vehicle identification number
(chassis number) ...................................................... 10-14
Engine serial number .............................................. 10-15
F.M.V.S.S./C.M.V.S.S. certification label.......... 10-15
Emission control information label..................... 10-16
Tire and loading information label...................... 10-16
Air conditioner specification label ...................... 10-16 Installing front license plate....................................... 10-17
Removing air deflectors.............................................. 10-18
Vehicle loading information....................................... 10-19
Terms ........................................................................\
10-19
Vehicle load capacity............................................ 10-20
Loading tips ............................................................ 10-21
Measurement of weights.................................... 10-21
Towing a trailer............................................................. 10-22 Flat towing.............................................................. 10-22
Uniform tire quality grading...................................... 10-22
Treadwear ............................................................... 10-22
Traction AA, A, B and C...................................... 10-23
Temperature A, B and C...................................... 10-23
Emission control system warranty.......................... 10-23
Reporting safety defects............................................ 10-24
Readiness for Inspection/Maintenance (I/M)
test (US only)................................................................. 10-25
Event Data Recorders (EDR) .................................... 10-25
Owner’s Manual/Service Manual
order information ......................................................... 10-26

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 gal 16-5/8 galÂ
See “Fuel information (for VR30DDTT engine model)” (P.10-4) or
“Fuel information (for 2.0L turbo gasoline engine model)” (P.10-6).
Engine oil
*1Drain and refill*1: For additional informa-
tion, see “Engine oil” (P.8-
10). VR30DDTT en-
gine model
Two-Wheel
Drive (2WD)
modelWith oil filter
change
4.8 L 5-1/8 qt 4-1/4 qt Â
Genuine “Nissan Motor Oil 0W-20 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.10-8).
Without oil fil-
ter change
4.6 L 4-7/8 qt 4 qt
All-Wheel
Drive (AWD)
model With oil filter
change
5.4 L 5-3/4 qt 4-3/4 qt
Without oil fil-
ter change 5.2 L 5-1/2 qt 4-5/8 qt
2.0L turbo ga-
soline engine
model Two-Wheel
Drive (2WD)
modelWith oil filter
change
6.3 L 6-5/8 qt 5-1/2 qt Â
Engine oil meeting specification MB229.5, viscosity SAE 0W-30 or
equivalent.
 As an alternative to this recommended oil, engine oils meeting
specification MB229.5, viscosity SAE 0W-40, 5W-30 and 5W-40
may be used and meet all specifications and requirements necessary
to maintain the new vehicle limited warranty.
 For additional information, refer to “Selecting the correct oil” (P.10-
9) and “Oil viscosity” (P.10-9) under “Engine oil and oil filter
recommendation” (P.10-8) of this manual.
Without oil fil-
ter change
5.8 L 6-1/8 qt 5-1/8 qt
All-Wheel
Drive (AWD)
model With oil filter
change
6.6 L
7 qt 5-7/8 qt
Without oil fil-
ter change 6.1 L 6-1/2 qt 5-3/8 qt
Engine coolant VR30DDTT en-
gine model Total (with reservoir)
Standard and premium grade
8.8 L 9-1/4 qt 7-3/4 qt Â
Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue)
or equivalent
Total (with reservoir)
Sport grade 10.3 L 10-7/8 qt 9-1/8 qt
Reservoir 0.6 L 5/8 qt 1/2 qt
2.0L turbo ga-
soline engine
model Total (with reservoir)
9.0 L 9-1/2 qt 7-7/8 qt Â
BASF Glysantin® G48®
 Use BASF Glysantin® G48® or equivalent in its quality. Any
damage to the vehicle or within the engine cooling system caused
by the use of engine coolant other than as recommended is not
covered under the INFINITI’s new vehicle limited warranty.
Reservoir 0.9 L1 qt 3/4 qt
Intercooler coolant Total (with reservoir)3.2 L 3-3/8 qt 2-7/8 qt ÂPre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue)
or equivalent
Reservoir 0.4 L 3/8 qt 3/8 qt
CAPACITIES AND RECOMMENDED
FLUIDS/LUBRICANTS

10-8Technical and consumer information
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,
it is recommended you have an INFINITI
retailer correct the condition. Failure to
correct the condition is misuse of the
vehicle, for which INFINITI is not respon-
sible.
Incorrect ignition timing will result in knock-
ing, 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 ve-
hicle checked. It is recommended you visit an
INFINITI retailer for servicing.
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.
JVT0342X
API certification mark
API service symbol
ENGINE OIL AND OIL FILTER
RECOMMENDATION
VR30DDTT engine model
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 fluids/
lubricants” (P.10-2). INFINITI recommends
the use of an energy conserving oil in order
to improve fuel economy.Select only engine oils that meet the Amer-
ican Petroleum Institute (API) certification
or International Lubricant Standardization
and Approval Committee (ILSAC) certifica-
tion 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 vis-
cosity is not covered by the new INFINITI
vehicle limited warranties.
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 recom-mended change interval. Oil and filter
change intervals depend upon how you use
your vehicle.
2.0L turbo gasoline engine model
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 fluids/
lubricants” (P.10-2).
Select only engine oils that meet the
MB229.5 and SAE viscosity standard. These
oils have the MB229.5 on 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 nextoil change. Choosing an oil viscosity other
than that recommended could cause serious
engine damage.
Technical and consumer information10-9