42 Cooling System
Antifreeze
General
Coolant is toxic; risk of poisoning. Do
not drink coolant. Use proper hand pro-
tection when handling. Keep coolant out
of reach of children and animals. Failure
to follow these precautions can cause se-
rious illness or death.
CAUTION
Never add coolant to a hot or overheated
engine. Engine damage can result. Allow
the engine to cool first.
CAUTION
Use of recycled antifreeze or coolant by
filtration is not approved by Volvo
Trucks North America, Inc., and may
reduce engine life. If the recycled an-
tifreeze or coolant has been passed
through a fractional distillation or
similar process that has removed all haz-
ardous and contaminating materials,
including dissolved solids and acids, will
produce a sufficient base antifreeze. Cor-
rectly inhibited to meet the ASTM
D4985 standard, it can be regarded as a
new coolant which is fully accepted.
Antifreeze additives not only protect the
cooling system from freezing but also
against corrosion and cylinder liner pitting.
Antifreeze typically comes in one of two
glycol types, ethylene or propylene. Propy-
lene antifreeze is NOT recommended for
use in a Volvo engine. There is also regular
and extended life antifreeze. If the vehicle
is delivered with extended life coolant,
there is a label attached to the surge tank.
NOTE! Do not mix regular and extended
life antifreeze. Do not use extended life an-
tifreeze unless it is of a type approved by
the engine manufacturer.
Regardless of the type and make, accept-
able antifreeze or premixed coolant must
meet or exceed the standards ASTM D
5345 and ASTM D 4985, and be formu-
lated for heavy duty diesel engines.
W2002144
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