AdBlue®/DEF
NOTICE
Risk of machine damage.
In the short term, use of the wrong fluid can lead to reduced engine power. In the long
term, it can lead to damage to the SCR-system and the catalyst. Reusing AdBlue®/DEF
can lead to contamination. Damages caused by the use of incorrect fluids will not be
covered by the warranty.
Always use fluid specified in ISO 22241-1. Do not reuse drained AdBlue®/DEF.
For reducing nitrogen oxides (NO
X
) the engine is equipped with a selective catalytic
reduction (SCR) system. A diesel exhaust fluid is needed for the process to work. The
fluid is called AdBlue® in Europe and Asia, but in North America it is called Diesel Exhaust
Fluid (DEF). When needed, the SCR system warms up the AdBlue®/DEF-tank and lines.
The fluid is filled in a separate tank, which is completely separated from the fuel tank.
AdBlue®/DEF may not be mixed in the fuel tank and fuel may not be mixed in the AdBlue®/
DEF-tank.
AdBlue®/DEF consists of urea crystals (32.5%) and distilled water (67.5%). It is
transparent, clear, and has a slight odour of ammonia. The fluid is not considered to be
hazardous, but should still be handled with care. It is very corrosive, especially with copper
and aluminium. For this reason, avoid spilling the fluid on electric cables and components.
Always wipe up any spilled AdBlue®/DEF.
AdBlue®/DEF is not a combustible product. When exposed to high temperatures it will
convert to ammonia and carbon dioxide. The fluid should not come into contact with other
chemicals or be mixed with other chemicals.
AdBlue®/DEF is sensitive to both high and low temperatures. It should not be exposed
to direct sunlight for any extended period of time. If the machine is not in use,
AdBlue®/DEF starts to freeze at −11 °C (12 °F). The fluid volume in the tank increases
when frozen, this is why it is important to follow the recommended fill volume.
AdBlue®/DEF does not break down or degrade when it freezes. The SCR-system will
thaw the fluid so that it regains its concentration with maintained quality. The machine will
work normally during the time that the fluid melts.
At AdBlue®/DEF temperatures above 20 °C (68 °F) the fluid starts to degrade. Then
the fluid gives off ammonia, which is aggressive to materials such as rubber. At
temperatures above 75–80 °C (167–176 °F), ammonia production increases. However,
high temperatures are permitted for a short time.
AdBlue®/DEF should be stored in a cool, dry, and ventilated place. The fluid may not be
stored in direct sunlight. The recommended storage temperature for AdBlue®/DEF is
between −11 °C (12 °F) and 25 °C (77 °F). Under these conditions, storage life is approx.
two years. Long-term storage of AdBlue®/DEF at a temperature above 25 °C (77 °F) can
reduce the lifetime of the fluid. A short time exposure to higher temperatures has no impact
on the quality.
364
Specifications
Fuel system
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