2018 INFINITI Q70 fuel filter

2-28Instruments and controls
When the fuel level drops even lower, the
dte display will change to “——”.
.If the amount of fuel added is small, the
display just before the ignition switch is
pushed to the OFF position may con-
tinue to be displayed.
. When driving uphill or rounding curves,
the fuel in the tank shifts, which may
momentarily change the display.
5. Outside air temperature (ICY — °F
or °C)
The outside air temperature is displayed in °F
or °C in the range of −22 to 140°F (−30 to
60°C).
The outside air temperature mode includes a
low temperature warning feature. If the
outside air temperature is below 37°F
(3°C), the warning is displayed on the screen.
The outside temperature sensor is located in
front of the radiator. The sensor may be
affected by road or engine heat, wind
directions and other driving conditions. The
display may differ from the actual outside
temperature or the temperature displayed
on various signs or billboards.
6. Setting
Setting is available while the engine is
running. Setting cannot be made while driving. A
message “Setting can only be operated
when stopped” is also displayed on the
vehicle information display.
The
switchandswitchare used
in the setting mode to select and decide a
menu.
SKIP:
Push the
switchto move to the
warning check mode.
Push the
switchto select other
menus.
ALERT:
There are the following submenus under the
alert menu.
. BACK
Select this submenu to return to the top
page of the setting mode.
. TIMER
Select this submenu to specify when the
“TIMER” indicator activates.
. ICY
Select this submenu to display the low
outside temperature warning.
MAINTENANCE:
There are the following submenus under the
maintenance menu. .
BACK
Select this submenu to return to the top
page of the setting mode.
. OIL
Select this submenu to set or reset the
distance for changing the engine oil.
. FILTER
Select this submenu to set or reset the
distance for replacing the oil filter.
. TIRE
Select this submenu to set or reset the
distance for replacing tires.
. OTHER
Select this submenu and set or reset the
distance for replacing items other than
the engine oil, oil filter and tires.
OPTIONS:
There are the following submenus under the
display menu.
. BACK
Select this submenu to return to the top
page of the setting mode.
. LANGUAGE
Select this submenu to choose English or
French for display.
. UNIT
Select this submenu to choose the unit
from miles, MPG, °F or km, l/100km, °C.

4. Drive at economical speeds and dis-tances.
.Observing the speed limit and notexceeding 60 MPH (97 km/h) (where
legally allowed) can improve fuel
efficiency due to reduced aerody-
namic drag.
.Maintaining a safe following distance
behind other vehicles reduces unne-
cessary braking.
.Safely monitoring traffic to anticipatechanges in speed permits reduced
braking and smooth acceleration
changes.
.Select a gear range suitable to roadconditions.
5. Use cruise control.
.Using cruise control during highway driving helps maintain a steady speed.
.Cruise control is particularly effectivein providing fuel savings when driving
on flat terrains.
6. Plan for the shortest route.
.Utilize a map or navigation system to determine the best route to save time.
7. Avoid idling.
.Shutting off your engine when safe for stops exceeding 30-60 seconds
saves fuel and reduces emissions. 8. Buy an automated pass for toll roads.
.Automated passes permit drivers to
use special lanes to maintain cruising
speed through the toll and avoid
stopping and starting.
9. Winter warm up.
.Limit idling time to minimize impact to fuel economy.
.Vehicles typically need no more than30 seconds of idling at start-up to
effectively circulate the engine oil
before driving.
.Your vehicle will reach its ideal oper-ating temperature more quickly while
driving versus idling.
10. Keeping your vehicle cool.
.Park your vehicle in a covered parking area or in the shade whenever possi-
ble.
.When entering a hot vehicle, openingthe windows will help to reduce the
inside temperature faster, resulting in
reduced demand on your A/C system. .
Keep your engine tuned up.
. Follow the recommended scheduled
maintenance.
. Keep the tires inflated to the correct
pressure. Low tire pressure increases tire
wear and lowers fuel economy.
. Keep the wheels in correct alignment.
Improper alignment increases tire wear
and lowers fuel economy.
. Use the recommended viscosity engine
oil. (See “Engine oil and oil filter recom-
mendation” (P.10-9).)
Starting and driving5-117
INCREASING FUEL ECONOMY

8-2Do-it-yourself
When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
.Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the
vehicle from moving. Move the shift
lever to P (Park).
. Be sure the ignition switch is in the
OFF or LOCK position when per-
forming any parts replacement or
repairs.
. Never connect or disconnect the
battery or any transistorized compo-
nent while the ignition switch is in the
ON position.
. Never leave the engine or automatic
transmission related component har-
nesses disconnected while the igni-
tion 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 when-
ever 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
supported 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 warn-
ing, even if the ignition key is in the
OFF position and the engine is not
running. To avoid injury, always dis-
connect the negative battery cable
before working near the fan.
. Because the fuel lines are under high
pressure even when the engine is off,
it is recommended you visit an
INFINITI retailer for service of the fuel filter or fuel lines.
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 en-
gine oil and coolant. Improperly dis-
posed engine oil, coolant, and/or
other vehicle fluids can damage the
environment. Always conform to lo-
cal regulations for disposal of vehicle
fluid.
This “8. Do-it yourself” section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A genuine INFINITI Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” (P.10-26).)
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and could
affect your warranty coverage. If in doubt
about any servicing, it is recommended you
have it done by an INFINITI retailer.
MAINTENANCE PRECAUTIONS

8-20Do-it-yourself
SDI2546
VQ37VHR engine
Remove the retainers
as illustrated and
pull out the filter element.
The filter element should not be cleaned and
reused. Replace it according to the main-
tenance schedule shown in the “9. Main-
tenance and schedules” section. When
replacing the filter, wipe the inside of the air cleaner housing and the cover with a
damp cloth.
WARNING
.
Operating the engine with the air
cleaner removed can cause you or
others to be burned. The air cleaner
not only cleans the air, it stops flame
if the engine backfires. If it isn’t
there, and the engine backfires, you
could be burned. Do not drive with
the air cleaner removed, and be care-
ful when working on the engine with
the air cleaner removed.
. Never pour fuel into the throttle body
or attempt to start the engine with
the air cleaner removed. Doing so
could result in serious injury.

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*:
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” (P.8-8) 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 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.
Fuel lines*:
Check the fuel hoses, piping and connections
for leaks, looseness, or deterioration. Tight-
en connections or replace parts as necessary.
Spark plugs:
Replace at specified intervals. Install new
plugs of the type as originally equipped.
CHASSIS AND BODY MAINTE-
NANCE
Brake lines and cables:
Visually inspect for proper installation.
Check for chafing, cracks, deterioration,
and signs of leaking. Replace any deterio-
rated or damaged parts immediately.
Maintenance and schedules9-5
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS

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
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 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 Replace every 105,000 miles (168,000 km)
Intake and exhaust valve
clearance* See NOTE (6)

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 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 Replace every 105,000 miles (168,000 km)
Intake and exhaust valve
clearance* See NOTE (6)
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) Periodic maintenance is not required.
However, if valve noise increases, inspectvalve 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-
facturer recall liability. Other maintenance
items and intervals are required.
Maintenance and schedules9-9

10 Technical and consumer information
Capacities and recommended fluids/lubricants...... 10-2Fuel information (for VQ37VHR
engine model).............................................................. 10-4
Fuel information (for VK56VD engine model)..... 10-6
Engine oil and oil filter recommendation............. 10-9
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
Vehicle loading information....................................... 10-18
Terms ........................................................................\
10-18
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