Cooling System
The engine's internal cooling system makes sure the
engine works at the right temperature. It is a closed
system that must always be filled with a mixture of
concentrated coolant and water in order to protect the
engine against internal corrosion, cavitation and burst-
ing due to freezing.
Coolant of a suitable chemical composition must be
used all year round. This also applies in areas where
there is never any risk of freezing, to provide the engine
with full corrosion protection. The use of anti-corrosion
agents alone is not permitted in Volvo Penta engines.
Never use water alone as a substitute for coolant.
The corrosion protection additives become less effec-
tive over time, which means that the coolant must be
changed at regular intervals; refer to
Maintenance
Schedule
. The cooling system must be flushed when-
ever the coolant is changed; refer to the
Cooling Sys-
tem, Cleaning page 56
section.
Volvo Penta coolants have been prepared to work best
with Volvo Penta engines and offer excellent protection
against corrosion, cavitation damage, and bursts due
to freezing. Only coolants of this quality are adapted
to, and approved by, Volvo Penta.
IMPORTANT!
Volvo Penta engines are delivered with either Volvo
Penta Coolant (green) or Volvo Penta Coolant VCS
(yellow); both are available as concentrates and Ready
Mixed.
We recommend that the coolant supplied with the
engine on delivery be used. Future warranty claims
related to engine and accessories may be denied if an
unsuitable coolant has been used, or if the instructions
for coolant mixture have not been followed. Engines
using yellow Volvo Penta Coolant VCS must have a
yellow decal with the text VOLVO COOLANT VCS on
the expansion tank.
•
The two types of Volvo Penta coolant may
never
be
mixed with each other as this will affect the anti-cor-
rosion properties.
•
Coolant filters may not be used together with Volvo
Penta Coolant VCS.
Ready Mixed
The ready-mixed coolant protects the engine from cor-
rosion damage, cavitation damage and bursts due to
freezing down to
-28 °C (-18 °F) Volvo Penta Coolant (green).
-24 °C (-11 °F) for Volvo Penta Coolant VCS (yellow).
coolant vcs ready mixed
P0013077
Maintenance
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47702660 03-2013 © AB VOLVO PENTA
