Coolant specification
Always use Volvo Penta Coolant in the freshwater cooling circuit. Volvo Penta Coolant acts both as anti-freeze
agent and provides corrosion protection for the metal parts of the cooling system. It also lubricates the coolant
pump seals and reduce the risk of cavitation. Future claims might be rejected should Coolant 90 not have been
used.
IMPORTANT! Mixing other types of concentrated coolant with Volvo Penta Coolant, may decrease cor-
rosion protection and may damage the engine or block the cooling system.
Water quality
Always use clean water that complies with the requirements in ASTM D4985. If these requirements are not com-
plied with, corrosion may occur, which would result in impaired cooling performance.
To tal solid content.................................................... < 340 ppm
To tal hardness ........................................................ < 9,5 °dH
Chloride .................................................................. < 40 ppm
Sulphate .................................................................. < 100 ppm
pH value ................................................................. < 5,5 – 9
Silica........................................................................ < 20 mg SiO
2
/l
Iron ......................................................................... < 0.10 ppm
Manganese ............................................................. < 0.05 ppm
Conductivity ............................................................ < 500 µS/cm
Organic content, COD
Mn
......................................... <15 mg KMnO
4
/L
Volvo Penta Coolant
A concentrated coolant that is to be mixed with water. It has been developed to function optimally with Volvo
Penta’s engines and provides excellent protection against corrosion, cavitation and frost damage.
Volvo Penta Coolant, Ready Mixed
A ready-mixed coolant, 40% “Volvo Penta Coolant” and 60% water.This concentration protects the engine
against corrosion, cavitation damage and freezing conditions down to -28 °C (18°F).
Mixing ratio
Mix 40% Volvo Penta Coolant and 60% water.This mixture protects the engine against internal corrosion, cavita-
tion and frost damage down to -28 °C (18°F). (Using 60 % glycol lowers the freezing point to -54 °C (65°F)).
If the coolant contains less than 40% Volvo Penta Coolant, the cooling galleries in the engine or radiator may be
blocked by contamination. If the coolant contains more than 60% Volvo Penta Coolant the cooling ability of the
coolant mixture is impaired, this may cause the engine to overheat. To o high concentration of Volvo Penta Coo-
lant also impairs the frost protection.
IMPORTANT! Coolant must be mixed withclean water, use distilled - de-ionized water.The water
must comply with the requirements in ASTM D4985, refer to “Water quality”.
IMPORTANT! It is extremely important that the correct concentration of coolant is added to the system.
Mix in a separate, clean vessel before adding into the cooling system. Ensure that the liquids mix pro-
perly.
104
Te chnical data
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