2016 NISSAN TITAN engine

Preventive maintenance is the easiest and least
expensive type of maintenance. Keep records of
regularly scheduled maintenance and follow the
maintenance schedule recommendations out-
lined in the “Titan Owner’s Manual”.
Use the correct fuel, lubricating oil, and coolant in
your engine. Blending engine oil with fuel is pro-
hibited for engines with an aftertreatment system.
For additional information refer to the “Capacities
and Specifications” section in this manual.
A NISSAN dealership knows your vehicle. When
you require any service or have any questions,
they will be glad to assist you with the extensive
resources available to them.
DIESEL ENGINE OPERATION
The operation of the diesel engine in your new
vehicle varies from the operation of traditional
gasoline engines found in other vehicles. Read-
ing this supplement will familiarize you and other
operators of the vehicle with the unique mainte-
nance and operating procedures that will prolong
the life of the diesel engine and related systems.
ENGINE BREAK-IN
RECOMMENDATIONS
●Warm up the engine before operating it un-
der load
● Do not operate the engine at idle for ex-
tended periods
● Prevent engine lugging by selecting the ap-
propriate transmission gear
● Monitor the vehicle oil pressure and tem-
perature gauges
● Check fluid levels frequently (Oil & Coolant)
● Vary the throttle position at highway speeds
when carrying weight or towing
NOTE:
Extended light or no load operation will
extend the time before the engine reaches
its full efficiency. If the engine is operated
in this manner, reduced fuel economy and
power may be observed.
The aforementioned procedure should be ob-
served for the first 6,000 miles. The engine run-in
is improved by operating the vehicle under load.
DIESEL FUEL SYSTEM
The diesel engine fuel system is a pressurized
two-stage filtration system and consists of: ● A frame-mounted primary (stage 1) fuel filter
containing water/fuel separator, electric fuel
pump, and water in fuel drain valve
● An engine-mounted secondary (stage 2)
fuel filter
● A fuel injector for each cylinder (8 total)
● A high-pressure fuel pump
● A high-pressure fuel rail for each cylinder
bank (2 total)
● High-pressure fuel lines from the high-
pressure fuel pump to the right bank fuel rail,
right bank fuel rail to the left bank fuel rail,
and fuel rails to fuel injectors.
The stage 1 fuel filter separates water and filters
impurities from the fuel. The stage 2 fuel filter
filters finer impurities from the diesel fuel. The
stage 1 and stage 2 fuel filters should be
changed at the recommended service interval or
when indicated by the information display. For
additional information, refer to the “Titan Owner’s
Manual”.
GENERAL INFORMATION
1-2Introduction

The water/fuel separator should be drained when
indicated by illumination of the water in fuel warn-
ing light.
Proper fuel filter maintenance and prompt water
draining when the water in the fuel filter warning
light illuminates is essential to prevent damage to
fuel injection system components. Ignoring the
water in fuel warning light can cause your vehicle
to go into a reduced power mode.
ENGINE PROTECTION MODE
The diesel engine in this vehicle is equipped with
electronically controlled fuel and emission sys-
tems. Both systems monitor engine temperatures
and pressures, and then modify engine operation
accordingly. It is normal for the diesel engine to
operate under these modified conditions for
short durations of time. If the engine operates
under the modified conditions for extended peri-
ods of time, and the service engine soon light is
illuminated, have the system checked. It is recom-
mended you visit a NISSAN dealer for this service
as soon as possible.
LUBRICATION SYSTEM
It is important to change the engine oil at the
recommended service intervals to maintain oil
viscosity. Extending the oil and filter change inter-
val beyond the recommended interval can nega-
tively affect engine performance, fuel economyand engine life. For additional information, refer to
the “Do-it-yourself” section of this manual.
GLOW PLUGS
The diesel engine glow plug system consists of:
● Eight Glow Plugs (one per cylinder)
● Glow Plug Control Module- Uses input from
the Engine Coolant Temperature Sensor
The glow plugs are energized momentarily when
the ignition is first turned on. The length of time
that the glow plugs are energized varies depend-
ing on engine and environmental conditions. The
required time for the glow plugs to be energized
decreases as coolant temperature increases. For
additional information, refer to the “Starting and
stopping the engine” section of this manual.
DIESEL PARTICULATE FILTER
SYSTEM
Your vehicle is equipped with a diesel particulate
filter in the exhaust system. The diesel particulate
filter reduces carbon emissions by trapping ex-
haust particulates (soot) before they reach the
tailpipe. You must properly maintain your diesel
particulate filter in order for it to function properly.
Regeneration of the diesel particulate filter oc-
curs automatically during operation above 5 mph
(8 km/h) and requires no actions from the driver.
If you do a lot of idling or stop and go driving, pay attention to maintenance messages that alert you
when you need to drive to activate the automatic
regeneration process. For additional information,
refer to the ”Automatic Regeneration” in the “Do-
it-yourself” section of this manual.
SELECTIVE CATALYTIC REDUCTION
SYSTEM
Your vehicle is equipped with a selective catalytic
reduction system designed to reduce emission
levels of nitrogen oxides from the exhaust of your
diesel engine. This system relies on the use of
Diesel Exhaust Fluid (DEF) that you must replen-
ish at certain intervals. Failure to maintain proper
DEF levels or if the DEF becomes contaminated
will result in vehicle speed limitation to 5 mph. For
additional information, refer to the ”Meters and
gauges” and “Capacities and Specifications”
sections of this manual.
Introduction1-3

WARNINGS LIGHTS, INDICATOR
LIGHTS, METERS AND GAUGES
These lights, meters and gauges are specific to
the diesel engine.1. Low Diesel Exhaust Fluid (DEF) warning
light
2. Diesel Particulate Filter (DPF) warning light
3. Vehicle information display 4. Water in Fuel warning light
5. Malfunction Warning Light (red)
LIC3469
METERS AND GAUGES
2-2Instrument Panel

Low Diesel Exhaust Fluid (DEF)
warning light
When this warning light illuminates, the DEF fluid
needs to be topped off.
For additional information, refer to the “Fuel and
refueling” section of this manual.
Diesel Particulate Filter (DPF) warning
light
When the warning light illuminates, it indicates
that particulate matter is accumulated to the
specified amount of the limit in the filter and the
filter needs to regenerate. For additional informa-
tion, refer to “Diesel Particulate Filter” in the
“Maintenance” section of this manual.
CAUTION
If you continue driving with the DPF warn-
ing light on without performing the filter
regeneration, this will lead to particle mat-
ter overload in the filter. If this happens,
the Malfunction Indicator Light (MIL) will
turn on to indicate the necessity that a
NISSAN or qualified dealer performs the
service regeneration. The performance of
the engine might be limited to protect the
DPF system.
Vehicle information display
The vehicle information display shows various
meters and gauges that pertain to the diesel
engine. The information that can be found within
the vehicle information display is as follows:
Exhaust temperature gauge
The exhaust temperature gauge is part of the
Auxiliary Gauges in the vehicle information dis-
play.
Turbo meter
The turbo meter shows the amount of engine
boost.
Diesel Exhaust Fluid (DEF) LEVEL
This gauge indicates the level of DEF in the diesel
system.
The DEF LEVEL information screen can be
turned ON/OFF in the vehicle information display.
For additional information, refer to “How to use
the vehicle information display” in the “Vehicle
information display” section of the owner’s
manual.
Water in Fuel warning light
If this light illuminates, pull off of the road in a safe
area, stop the engine and immediately drain the
water from the fuel sediment filter. For additional
information, refer to “Draining water” in the “Do-
it-yourself” section of this manual.
Malfunction Warning Light (red)
If the warning light illuminates this indicates either
coolant temperature is above a critical threshold
or the exhaust temperatures are above a critical
threshold. When illuminated this lamp indicates
the need to stop the engine as soon as it can be
safely done. The engine must remain shut down
until the engine can be repaired.
Instrument Panel2-3

VEHICLE INFORMATION DISPLAY
WARNINGS AND INDICATORS
1. DEF Low XX% Refill Soon
2. DEF Low XX% Limited Engine Power Soon
3. DEF Low Limited Engine Power In XX Miles4. DEF Empty 5mph Limit Soon: See Owner’s
Manual
5. DEF Empty Refill DEF: See Owner’s Manual
6. DEF System Error See Dealer 7. DEF System Error 5MPH Speed limit XXX
Miles
8. DEF System Error 5MPH Speed Limit Soon
9. DEF System Error 5MPH Speed Limit See Dealer
LIC3468
2-4Instrument Panel

10. Exhaust Filter Overloaded: See Owner’sManual For Drive Pattern
11. Exhaust Filter Regeneration Started
12. Exhaust Filter Overloaded Engine Power Reduced: See Owner’s Manual
13. Exhaust Filter Overloaded Immediate Ser- vice Required
14. Engine Warming Keep Foot on Brake
15. Engine Shutdown: Stop Safely
16. Engine Power Reduced
17. Service Air Filter
18. Engine Oil Service Due XX
DEF Low XX% Refill Soon
This message appears when the DEF becomes
low. It is recommended that the DEF be topped
off. For additional information, refer to “Diesel
Exhaust Fluid (DEF)” in the “Fueling and refuel-
ing” section of this manual.
DEF Low XX% Limited Engine Power
Soon
This message appears as the DEF becomes low.
Engine power will be limited soon. It is recom-
mended that the DEF be topped off. For addi- tional information, refer to “Diesel Exhaust Fluid
(DEF)” in the “Fueling and refueling” section of
this manual.
DEF Low Limit Engine Power In XX Miles
This message appears when the DEF becomes
low. Engine power will be limited in the approxi-
mate distance shown. It is recommended that the
DEF be topped off. For additional information,
refer to “Diesel Exhaust Fluid (DEF)” in the “Fuel-
ing and refueling” section of this manual.
DEF Empty 5mph Limit Soon: See Owners
Manual
This message appears when the DEF becomes
empty. It is recommended that the DEF be refilled
as soon as possible. The following conditions will
limit the vehicle speed when then message is
shown:
● Engine shutdown and restart
● Engine is idled for approximately 1 hour
● Control module detects a fuel level increase
For additional information, refer to “Diesel
Exhaust Fluid (DEF)” in the “Fueling and
refueling” section of this manual. DEF Empty Refill DEF: See Owner’s
Manual.
This message appears when the DEF is empty
and the vehicle speed is reduced to a maximum
of 5 MPH. It is recommended that the DEF be
refilled as soon as possible. For additional infor-
mation, refer to “Diesel Exhaust Fluid (DEF)” in
the “Fueling and refueling” section of this manual.
DEF System Error: See Dealer
This message appears when the DEF system
encounters an error. It is recommended that you
have the system checked by a NISSAN dealer or
other qualified technician . For additional informa-
tion, refer to “Diesel Exhaust Fluid (DEF)” in the
“Fueling and refueling” section of this manual.
DEF System Error 5MPH Speed limit XXX
Miles
This message appears when the DEF system
encounters an error. The vehicle speed will be
reduced in the approximate distance shown. For
additional information, refer to “Diesel Exhaust
Fluid (DEF)” in the “Fueling and refueling” section
of this manual.
Instrument Panel2-5

DEF System Error 5MPH Speed Limit
Soon
This message appears when the DEF system has
encountered an error. The following conditions
will reduce the vehicle speed when this message
is shown:● Engine shutdown and restart
● Engine is idled for approximately 1 hour
● Control module detects a fuel level increase
For additional information, refer to “Diesel Ex-
haust Fluid (DEF)” in the “Fueling and refueling”
section of this manual.
DEF System Error 5MPH Speed Limit: See
Dealer
This message appears when the DEF system
encounters an error and the vehicle speed is
reduced. It is recommended that you have the
system checked by a NISSAN dealer or other
qualified technician. For additional information,
refer to “Diesel Exhaust Fluid (DEF)” in the “Fuel-
ing and refueling” section of this manual.
Exhaust Filter Overloaded: See Owner’s
Manual For Drive Pattern
This message appears when the diesel particu-
late filter starts to overload. The Diesel Particulate
Filter (DPF) warning light will also illuminate. When this message is seen, the vehicle
should be driven on the highway where the
road conditions safely allow and the speed
limit permits, over 55 mph (90 km/h) for at
least 45 minutes.
For additional information,
refer to “Diesel Particulate Filter (DPF)” in the
“Do-it-yourself” section of this manual.
Exhaust Filter Regeneration Started
This message appears when the automatic re-
generation has started to clean the exhaust filter.
For additional information, refer to “Diesel Par-
ticulate Filter (DPF)” in the “Do-it-yourself” sec-
tion of this manual.
Exhaust Filter Overloaded Engine Power
Reduced: See Owner’s Manual
This message appears when the diesel particu-
late filter starts to overload. Engine torque and
speed will be reduced. The Diesel Particulate
Filter (DPF) warning light will also blink.
If the Malfunction Indicator Light (MIL) is OFF, the
vehicle should be driven on the highway where
the road conditions safely allow and the speed
limit permits, over 55 mph (90 km/h) for at least
45 minutes.
If the MIL illuminates, the exhaust filter cannot be
regenerated by driving the vehicle. It is recom-
mended that you have the system checked by a
NISSAN dealer or other qualified technician. For additional information, refer to “Diesel Par-
ticulate Filter (DPF)” in the “Do-it-yourself” sec-
tion of this manual.
Exhaust Filter Overloaded Immediate Ser-
vice Required
This message appears when the diesel particu-
late filter is overloaded. The Diesel Particulate
Filter (DPF) warning light blinks quickly and the
Malfunction Indicator Lamp (MIL) illuminates.
When this message is displayed the engine
speed and torque will be reduced. It is recom-
mended that you visit a NISSAN dealer or quali-
fied technician immediately. For additional infor-
mation, refer to “Diesel Particulate Filter (DPF)” in
the “Do-it-yourself” section of this manual.
Engine Warming Keep Foot on Brake
This message appears during cold start condi-
tions when:
● Brake pedal is depressed
● Push-button start button has been pressed
● Coolant temperature is below threshold
Keep foot on brake until engine starts, which can
take up to approximately 4 seconds. For addi-
tional information, refer to “Starting the diesel
engine” in the “Starting and stopping the engine”
section of this manual.
2-6Instrument Panel

Engine Shutdown: Stop Safely
This message appears 30 seconds before the
vehicle is shutdown due to an above normal
operating exhaust temperature. The Malfunction
Indicator Light (MIL) and Malfunction Warning
Light (red) will illuminate. It is recommended that
you visit a NISSAN dealer or other qualified tech-
nician immediately.
Engine Power Reduced
This message appears when the engine is not
operating under normal conditions. For additional
information, refer to “Engine Protection Mode” in
the “Introduction” section of this manual.
Service Air Filter
This warning appears when the air filter needs to
serviced. For additional information, refer to “Air
cleaner” in the ”Maintenance” section of the Titan
Diesel Owner’s Manual”.
Engine Oil Service due XX
This message is a count down of mileage until the
next engine oil service is due. Mileage until next
required engine oil service will be displayed by
the vehicle information display and will decrease
at a higher rate as vehicle operation severity (high
duty cycle) increases.
Instrument Panel2-7