Volvo Penta D4 Series Operator's Manual page 87

47702599 12-2011
Coolant, Mixing
WARNING!
All coolant is hazardous and harmful to the environ-
ment. Do not consume. Coolant is flammable.
IMPORTANT!
Different types of coolant must not be mixed with each
other!
Mix: 40% "Volvo Penta Coolant" (conc.
coolant)and 60% water
This mixture protects against internal corrosion, cavi-
tation and frost bursting down to –24°C (–11°F). At
60% glycol concentration, the freezing point is lowered
to –46°C (–51°F).
Never mix more than 60% concentrate (Volvo Penta
Coolant) in the coolant. A greater concentration pro-
vides reduced cooling effect with the risk for overheat-
ing and reduced frost protection.
The coolant must be mixed with distilled, deionized
water. The water must fulfil the requirements specified
by Volvo Penta; refer to Water Quality.
It is extremely important that the system is filled with
the correct coolant concentration. Mix in a separate
clean vessel before filling the cooling system. Make
sure that the liquids mix.
Coolant Level, Checking and
Topping Up
WARNING!
Do not open the coolant filler cap when the engine is
warm, except in emergencies, this could cause serious
personal injury. Steam or hot fluid could spray out.
1 Turn the filler cover slowly counter-clockwise and
release any pressure from the system before
removing the cover completely.
2 Top the coolant up as necessary. The coolant level
shall be between the MAX and MIN marks on the
expansion tank.
3 Screw the filler cover on.
Maintenance
85