2018 NISSAN ALTIMA engine overheat

CAUTION
∙ Do not push start this vehicle. Thethree-way catalyst may be damaged.
∙ Continuously Variable Transmission (CVT) models cannot be push-started
or tow-started. Attempting to do so
may cause transmission damage. If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc. take the
following steps.
WARNING
∙ Do not continue to drive if your vehicle
overheats. Doing so could cause en-
gine damage or a vehicle fire.
∙ To avoid the danger of being scalded, never remove the radiator cap while
the engine is still hot. When the radia-
tor cap is removed, pressurized hot
water will spurt out, possibly causing
serious injury.
∙ Do not open the hood if steam is com- ing out.
1. Move the vehicle safely off the road, ap- ply the parking brake and move the
shif t lever to P (Park).
Do not stop the engine.
2. Turn off the air conditioner. Open all the windows, move the heater or air condi-
tioner temperature control to maxi-
mum hot and fan control to high
speed. 3. Get out of the vehicle. Look and listen
for steam or coolant escaping from the
radiator before opening the hood. (If
steam or coolant is escaping, turn off
the engine.) Do not open the hood fur-
ther until no steam or coolant can be
seen.
4. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
5. Visually check drive belts for damage or looseness. Also check if the cooling
fan is running. The radiator hoses and
radiator should not leak water. If cool-
ant is leaking, the water pump belt is
missing or loose, or the cooling fan
does not run, stop the engine.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or
the engine cooling fan. The engine cool-
ing fan can start at any time.
PUSH STARTING IF YOUR VEHICLE OVERHEATS
6-12In case of emergency

The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life
Antifreeze/Coolant (blue) and 50% water to
provide year-round antifreeze and coolant
protection. The antifreeze solution con-
tains rust and corrosion inhibitors. Addi-
tional engine cooling system additives are
not necessary.
WARNING
∙ Never remove the radiator or coolantreservoir 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. For additional informa-
tion on precautions, refer to “If your
vehicle overheats” in the “In case of
emergency ” section of this manual.
∙ The radiator is equipped with a pres- sure type radiator cap. To prevent en-
gine damage, use only a Genuine
NISSAN radiator cap.
CAUTION
∙ Never use any cooling system addi-tives such as radiator sealer. Additives
may clog the cooling system and
cause damage to the engine, trans-
mission and/or cooling system.
∙ When adding or replacing coolant, be sure to use only Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or
equivalent. Genuine NISSAN Long Life
Antifreeze/Coolant (blue) is pre-
diluted to provide antifreeze protec-
tion to -34° F (-37° C). If additional
freeze protection is needed due to
weather where you operate your ve-
hicle, add Genuine NISSAN Long Life
Antifreeze/Coolant (blue) concen-
trate following the directions on the
container. If an equivalent coolant
other than Genuine NISSAN Long Life
Antifreeze/Coolant (blue) is used, fol-
low the coolant manufacturer’s in-
structions to maintain minimum anti-
freeze protection to -34° F (-37° C). The
use of other types of coolant solu-
tions 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 cool-
ant. For additional information, refer
to the "Maintenance and schedules"
section of this manual.
ENGINE COOLING SYSTEM
Do-it-yourself8-5

Fuel containing MMT
MMT, or methylcyclopentadienyl manga-
nese tricarbonyl, is an octane boosting ad-
ditive. NISSAN 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.
Af termarket fuel additives
NISSAN does not recommend the use of
any af termarket fuel additives (for ex-
ample, fuel injector cleaner, octane
booster, intake valve deposit removers,
etc.) which are sold commercially. Many of
these additives intended for gum, varnish
or deposit removal may contain active sol-
vents 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 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 heavyspark 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 recom-
mended that you have a NISSAN dealer
correct the condition. Failure to correct
the condition is misuse of the vehicle, for
which NISSAN is not responsible.
Incorrect ignition timing may result in
spark knock, af ter-run and/or overheating,
which may cause excessive fuel consump-
tion or engine damage. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended that you
visit a NISSAN dealer for servicing.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is not
a cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
Technical and consumer information10-5

O
Octane rating (See fuel octane rating). . .10-5
Odometer ....................2-4
Oil Capacities and recommended
fuel/lubricants...............10-2
Changing engine oil ............8-8
Changing engine oil filter .........8-10
Checking engine oil level .........8-7
Engine oil ...................8-7
Engine oil and oil filter
recommendation .............10-6
Engine oil viscosity .............10-6
One shot call ...............4-57,4-58
Outsidemirrors................3-32
Overhead sunglasses holder ........2-47
Overheat Ifyourvehicleoverheats.........6-12
Owner's manual order form ........10-21
Owner's manual/service manual order
information ..................10-21
P
Parking Parking brake operation .........5-21
Parking/parkingonhills.........5-80
Personal lights .................2-55
Phone, Bluetooth® hands-free system . .4-54
Power Power door locks ...........3-5,3-6
Powerrearwindows ...........2-51
Powersteeringfluid............8-11
Power steering system .........5-80Powerwindows..............2-49
Rearpowerwindows...........2-51
Powersteering.................5-80
Powersteeringfluid..............8-11
Precautions Maintenance precautions .........8-2
Precautions on booster
seats............1-23, 1-29, 1-36, 1-41
Precautions on child
restraints .........1-23, 1-29, 1-36, 1-41
Precautions on seat belt usage .....1-12
Precautions on supplemental restraint
system ................... .1-44
Precautions when starting and
driving.....................5-2
Push starting ..................6-12
R
Radio Car phone or CB radio ..........4-54
FM-AM radio with compact disc (CD)
player ....................4-33
FM/AM/SAT radio with compact disc (CD)
player ....................4-37
Readiness for inspection maintenance
(I/M) test ....................10-20
RearCrossTrafficAlert(RCTA) .......5-32
Rearpowerwindows.............2-51
Rearseat.................... .1-6
Rearviewmirror................3-30
RearViewMonitor................4-3
Rear window and outside mirror defroster
switch......................2-35
Recommended Fluids ............10-2 Recorders
EventData................ .10-20
Refrigerant recommendation ........10-7
Registering a vehicle in another
country .....................10-10
Remote Engine Start ..........3-20,5-14
Reporting safety defects (US only) . . . .10-19
S
Safety Child safety rear door lock ........3-6
Childseatbelts......1-23, 1-29, 1-36, 1-41
Reporting safety defects (US only) . .10-19
Seat adjustment Front manual seat adjustment ......1-3
Front power seat adjustment ......1-4
Rear seat adjustment ...........1-6
Seatback pockets ...............2-46
Seat belt Childsafety................ .1-20
Infants
and small children ........1-21
InjuredPerson............... .1-15
Largerchildren.............. .1-21
Precautionsonseatbeltusage.....1-12
Pregnant women ..............1-15
Seat belt extenders ............1-19
Seat belt maintenance ..........1-19
Seatbelts................1-12, 7-6
Shoulder belt height adjustment . . . .1-19
Three-pointtypewithretractor.....1-15
Seat belt extenders ..............1-19
Seatbeltwarninglight.........1-14, 2-15
Seats Adjustment ..................1-2
11-5