2018 INFINITI Q50 HYBRID engine

9-8Maintenance and schedules
EMISSION CONTROL SYSTEM MAINTENANCE
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
Air cleaner filter See NOTE (1) RR
EVAP vapor lines I*I* I*
Fuel lines I*I* I*
Fuel filter See NOTE (2)
Engine coolant* See NOTE (3) (4)
HEV inverter coolant See NOTE (4) (5)
Engine oil R R R R R R R R R R R R
Engine oil filter R R R R R R R R R R R R
Spark plugs See NOTE (6) Replace every 105,000 miles (168,000 km)
Intake and exhaust valve
clearance* See NOTE (7)

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
Air cleaner filter See NOTE (1) RR
EVAP vapor lines I*I* I*
Fuel lines I*I* I*
Fuel filter See NOTE (2)
Engine coolant* See NOTE (3) (4)
HEV inverter coolant See NOTE (4) (5)
Engine oil R R R R R R R R R R R R
Engine oil filter R R R R R R R R R R R R
Spark plugs See NOTE (6) Replace every 105,000 miles (168,000 km)
Intake and exhaust valve
clearance* See NOTE (7)
NOTE:
(1) If operating mainly in dusty conditions,
more frequent maintenance may be re-
quired.
(2) Periodic maintenance is not required.
(3) 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.
(4) 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.
(5) First replacement interval is 12,5000
miles (200,000 km) or 180 months. After
first replacement, replace every 75,000
miles (120,000 km) or 60 months.
(6) Replace spark plug when the plug gap
exceeds 0.055 in (1.4 mm) even if within
specified replacement mileage.
(7) 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
perform such maintenance in order to
maintain the emission warranty or manu-
Maintenance and schedules9-9

10 Technical and consumer information
Capacities and recommended fluids/lubricants ..... 10-2Fuel information ........................................................ 10-4
Engine oil and oil filter recommendation ............ 10-6
Air conditioning system refrigerant and
lubricant recommendations ..................................... 10-7
Specifications .................................................................. 10-8
Engine ........................................................................\
.. 10-8
Wheels and tires ........................................................ 10-9
Dimensions ................................................................... 10-9
When traveling or registering in
another country ............................................................ 10-10
Vehicle identification ................................................... 10-10 Vehicle Identification Number (VIN) plate ....... 10-10
Vehicle identification number
(chassis number) ...................................................... 10-10
Engine serial number .............................................. 10-11
F.M.V.S.S./C.M.V.S.S. certification label .......... 10-11
Emission control information label ..................... 10-11
Tire and loading information label ..................... 10-12
Air conditioner specification label ...................... 10-12 Installing front license plate ..................................... 10-13
Removing air deflectors ............................................. 10-14
Vehicle loading information ...................................... 10-15
Terms ........................................................................\
10-15
Vehicle load capacity ........................................... 10-16
Loading tips ............................................................. 10-17
Measurement of weights .................................... 10-17
Towing a trailer ............................................................ 10-18 Flat towing ............................................................. 10-18
Uniform tire quality grading ..................................... 10-18
Treadwear ............................................................... 10-18
Traction AA, A, B and C ..................................... 10-19
Temperature A, B and C ..................................... 10-19
Emission control system warranty ......................... 10-19
Reporting safety defects ........................................... 10-20
Readiness for Inspection/Maintenance (I/M)
test (US only) ................................................................ 10-21
Event Data Recorders (EDR) ................................... 10-21
Owner’s Manual/Service Manual
order information ......................................................... 10-22

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 67.4 L 17-7/8 gal 14-7/8 galÂSee “Fuel information” (P.10-4).
Engine oil
*1Drain and refill*1: For additional information, see “Changing engine oil and oil filter”
(P.8-10). 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 “En-
gine oil and oil filter recommendation” (P.10-6).
Without oil filter
change
4.6 L 4-7/8 qt 4 qt
Engine coolant With reservoir Pressurized radiator reservoir tank 10.8 L 11-3/8 qt 9-1/2 qtÂPre-diluted Genuine NISSAN Long Life Antifreeze/
Coolant (blue) or equivalent
Non-pressurized ra-
diator reservoir tank 2WD model
9.8 L 10-3/8 qt 8-5/8 qt
AWD model 10.3 L 10-7/8 qt 9-1/8 qt
Reservoir Pressurized radiator reservoir tank 0.9 L1 qt 3/4 qt
Non-pressurized radiator reservoir tank 0.8 L 7/8 qt 3/4 qt
Inverter coolant With reservoir 2.4 L 2-1/2 qt 2-1/8 qt
Reservoir 0.4 L 3/8 qt 3/8 qt
Automatic transmission fluid
———Â
Genuine NISSAN Matic S ATF
 INFINITI recommends using Genuine NISSAN Ma-
tic S ATF ONLY in INFINITI automatic transmis-
sions. 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 recom-
mended is not covered under the INFINITI’s new
vehicle limited warranty.
Differential gear oil Front
———Â
Genuine NISSAN Differential Oil Hypoid Super GL-
5 80W-90 or equivalent conventional (non-syn-
thetic) oil.
Rear ———Â
Genuine NISSAN Differential Oil Hypoid Super-S
GL-5 synthetic 75W-90 or equivalent
Transfer fluid ———ÂGenuine NISSAN Matic J ATF
 INFINITI recommends using Genuine NISSAN Ma-
tic J ATF ONLY in INFINITI transfers. Do not mix
with other fluids. Using fluids that are not equiva-
lent to Genuine NISSAN Matic J ATF may damage
the transfer. Damage caused by the use of fluids
other than as recommended is not covered under
the INFINITI’s new vehicle limited warranty.
CAPACITIES AND RECOMMENDED
FLUIDS/LUBRICANTS

problems and/or fuel system damage.
.The fuel should be unleaded and have an
octane rating no lower than that re-
commended for unleaded gasoline.
. If an oxygenate-blend, excepting a
methanol blend, is used, it should con-
tain no more than 15% oxygenate.
. If a methanol blend is used, it should
contain no more than 5% methanol
(methyl alcohol, wood alcohol). It should
also contain a suitable amount of ap-
propriate cosolvents and corrosion in-
hibitors. If not properly formulated with
appropriate cosolvents and corrosion
inhibitors, such methanol blends may
cause fuel system damage and/or vehi-
cle performance problems. At this time,
sufficient data is not available to ensure
that all methanol blends are suitable for
use in INFINITI vehicles.
If any undesirable driveability problems such
as engine stalling or hard hot starting are
experienced after using oxygenate-blend
fuels, immediately change to a non-oxyge-
nate fuel or a fuel with a low blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygenates
can cause paint damage.E-15 fuel
E-15 fuel is a mixture of approximately 15%
fuel ethanol and 85% unleaded gasoline. E-
15 can only be used in vehicles designed to
run on E-15 fuel. U.S. government regula-
tions require fuel ethanol dispensing pumps
to be identified with small, square, orange
and black label with the common abbrevia-
tion or the appropriate percentage for that
region.
E-85 fuel
E-85 fuel is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline. E-
85 can only be used in a Flexible Fuel Vehicle
(FFV). Do not use E-85 fuel in your vehicle.
U.S. government regulations require fuel
ethanol dispensing pumps to be identified
by a small, square, orange and black label
with the common abbreviation or the appro-
priate percentage for that region.
Fuel containing MMT
MMT, or methylcyclopentadienyl manga-
nese tricarbonyl, is an octane boosting
additive. INFINITI does not recommend the
use of fuel containing MMT. Such fuel may
adversely affect vehicle performance, in-
cluding the emissions control system. Note
that while some fuel pumps label MMT
content, not all do, so you may have to consult your gasoline retailer for more de-
tails.
Aftermarket fuel additives
INFINITI does not recommend the use of any
aftermarket fuel additives (Example: fuel
injector cleaner, octane booster, intake valve
deposit removers, etc.) which are sold com-
mercially. Many of these additives intended
for gum, varnish or deposit removal may
contain active solvent or similar ingredients
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
Technical and consumer information10-5

10-6Technical and consumer information
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.
JVT0159X
API certification mark
API service symbol
ENGINE OIL AND OIL FILTER
RECOMMENDATION
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) certificationor 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.
AIR CONDITIONING SYSTEM RE-
FRIGERANT AND LUBRICANT
RECOMMENDATIONS
The air conditioning system in your INFINITI
vehicle must be charged with the refriger-
ant HFC-134a (R-134a) and the lubricant,
AE-10.
CAUTION
The use of any other refrigerant or
lubricant may cause severe damage to
the air conditioning system and may
require the replacement of all air condi-
tioner system components.
The refrigerant HFC-134a (R-134a) in your
INFINITI vehicle will not harm the earth’s
ozone layer. Although this refrigerant does
not affect the earth’s atmosphere, certain
governmental regulations require the recov-
ery and recycling of any refrigerant during
automotive air conditioning system service.
Your INFINITI retailer has the trained tech-
nicians and equipment needed to recover
and recycle your air conditioning system refrigerant.
It is recommended you visit an INFINITI
retailer when servicing your air conditioning
system.
Technical and consumer information10-7

10-8Technical and consumer information
ENGINE
ModelVQ35HR
Type Gasoline, 4-cycle
Cylinder arrangement 6-cylinder, V-slanted at 60°
Bore × Stroke in (mm) 3.760 × 3.205
(95.5 × 81.4)
Displacement cu in (cm
3)213.45 (3,498)
Firing order 1-2-3-4-5-6
Idle speed rpm
No adjustment is necessary.
Ignition timing
(B.T.D.C.) degree/rpm
Spark plug FXE22HR11
Spark plug gap (Normal) in (mm) 0.043 (1.1)
Camshaft operation Timing chain
This spark ignition system complies with the Canadian standard ICES-002.
STI0425
VQ35HR engine
SPECIFICATIONS