Page 657 of 671
Page 658 of 671

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 water to
avoid cracking the engine block or other
engine components.
● Spray an engine shampoo and/or degreaser
on all parts that require cleaning and pres-
sure 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 electri-
cal connections.
● Cover the battery, power distribution box,
and air filter assembly to prevent water dam-
age when cleaning the engine.
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 re-
move debris or foreign material if present as
needed. Spraying with a hose during regular
washing of vehicle should help keep holes clean
and clear of debris or foreign material.
Page 659 of 671
●When cleaning blocked or plugged
holes in the exhaust system, care
should be taken to minimize the quan-
tity of water entering the exhaust sys-
tem. Excessive water that enters the
exhaust system could cause damage re-
quiring exhaust system to be replaced.
Vehicle Care7-3
Page 660 of 671
Page 661 of 671
Page 662 of 671
Page 663 of 671
FUEL RECOMMENDATION
Diesel engine
Commercially available diesel fuel is adjusted
seasonally for cold temperatures. NISSAN rec-
ommends the use of diesel fuel that has been
seasonally adjusted for temperatures below 32°F
(0°C)
Diesel fuel of above 42 cetane minimum above
32°F (0°C); 45 cetane minimum below 32°F
(0°C) and with less than 15 ppm of sulfur must be
used.
A cetane number below 42 can cause poor start-
ing, excessive white smoke, and poor idling. A
cetane number above 55 can increase smoke at
peak torque conditions.
If two types of diesel fuel are available, use sum-
mer or winter fuel properly according to the fol-
lowing temperature conditions.● Above 32°F (0°C)...Summer type diesel
fuel.
● Below 32°F (0°C)...Winter type diesel fuel.
If you are in any doubt, it is recommended that
you consult a NISSAN dealer.
Page 664 of 671