Page 649 of 682
MEMO
5-4In Case of Emergency
Page 650 of 682
6 Vehicle Care
Cleaning........................................6-2
Cleaning the engine ..........................6-2 Cleaning the exhaust
.........................6-2
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In order to maintain the proper operation
of a diesel engine, it is important to take
proper care of it, which includes cleaning as
indicated.
CLEANING THE ENGINE
Engines are more efficient when they are
clean because grease and dirt buildup
keep the engine warmer than normal.
When washing:∙ Take care when using a power washer to clean the engine. The high-pressure
fluid could penetrate the sealed parts
and cause damage.
∙ Do not spray a hot engine with cold wa- ter to avoid cracking the engine block or
other engine components.
∙ Spray an engine shampoo and/or degreaser on all parts that require
cleaning and pressure rinse clean.
∙ Never wash or rinse the engine while it is hot or running; water in the running
engine may cause internal damage.
∙ Never wash or rinse any control box electrical connections. ∙ Cover the battery, power distribution
box, and air filter assembly to prevent
water damage when cleaning the en-
gine.
CLEANING THE EXHAUST
The visible holesAin the exhaust system
are functional. The holes need to be kept
clear of mud/debris or foreign material to
maintain proper function of the exhaust
system. Clean and remove debris or for-
eign material if present as needed. Spray-
ing with a hose during regular washing of
vehicle should help keep holes clean and
clear of debris or foreign material.
LCE2252
CLEANING
6-2Vehicle Care
Page 652 of 682

WARNING
∙ Failure to maintain the functionalholes in the exhaust system clean and
free of debris or foreign material may
result in the holes becoming blocked
or plugged. Do not modif y or remove
sections of the exhaust system that
contain these holes. Blocked or
plugged holesor
removal/modification of the system
could result in elevated exhaust gases
or exhaust gas temperatures which
may result in vehicle damage, per-
sonal injury or death.
∙ The normal operating temperature of the exhaust system is very high. Never
work around or attempt to repair any
part of the exhaust system until it has
cooled. Use special care when work-
ing around the diesel oxidation cata-
lytic converter and/or the diesel par-
ticulate filter (DPF). The diesel
oxidation catalytic converter and/or
the DPF heats up to a high tempera-
ture af ter only a short period of en-
gine operation and can stay hot even
af ter the engine is turned off. Failure
to follow these instructions may re-
sult in personal injury. ∙ When cleaning blocked or plugged
holes in the exhaust system, care
should be taken to minimize the
quantity of water entering the ex-
haust system. Excessive water that
enters the exhaust system could
cause damage requiring exhaust sys-
tem to be replaced.
Vehicle Care6-3
Page 653 of 682
Page 654 of 682
7 Do-it-yourself
Engine compartment check locations........... 7-2
Engine cooling system .......................... 7-3
Checking engine coolant level ................ 7-4
Changing engine coolant ..................... 7-4
Engine oil ........................................ 7-5
Checking engine oil level ..................... 7-5
Changing engine oil ..........................7-6
Changing engine oil filter .....................7-8 Fuel filter (CUMMINS 5.0L)
........................ 7-9
Fuel filter replacement (stage 1 and 2) ........ 7-9
Diesel Particulate Filter (DPF) .................... 7-10
Automatic regeneration ......................7-11
Drive belt ........................................7-11
Air cleaner ...................................... 7-12
In-cabin microfilter .......................... 7-12
Page 655 of 682
1. Windshield-washer fluid reservoir
2. Fuse box
3. Fuse/Fusible link box
4. Engine coolant reservoir
5. Fuel filter (Stage 2)
6. Engine oil filler cap
7. Brake fluid reservoir
8. Air cleaner
9. Battery
10. Power steering fluid reservoir
11. Radiator cap
12. Engine oil dipstick
13. Drive belt location
14. Fuse/Fusible link box
15. Battery
Cummins 5.0L
LDI2870
ENGINE COMPARTMENT CHECK
LOCATIONS
7-2Do-it-yourself
Page 656 of 682

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 the Titan Own-
er’s 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 cause severe engine
damage. ∙ The life expectancy of the factory-fill
coolant is 45,000 miles (78,000 km) or
3 years. Mixing any other type of cool-
ant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue), includ-
ing 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 Titan Owner’s Manual.
∙ Use Nitrite Free Coolant or equivalent. The use of coolant containing Nitrites,
could cause severe engine damage.
ENGINE COOLING SYSTEM
Do-it-yourself7-3