Doosan DA40 - Coolant

SHOP MANUAL
Engine
Ch 1 page 182
Coolant, Resistance to Cold
The following example shows coolant properties with 30 percent
by volume of antifreeze:
• Ice slush starts to form at -16°C (3°F).
• At -30°C (-22°F), there is a risk of cooling system
malfunction.
• There is no risk of damage by freezing with a minimum
antifreeze content of 35 percent by volume.
The diagram depicts coolant properties at different percentages
of antifreeze concentration by volume.
A Ice formation starts (ice slush)
B Damage by freezing occurs
1 Safe area
2 Malfunctions may occur (ice slush)
3 Risk of damage by freezing
2
1
3
-16
-10
-20
-30
-40
-50
10 20 30 40 500
0
%
B AC
A Ice formation starts (ice slush)
B Damage by freezing occurs
1 Safe area
2 Malfunctions may occur (ice slush)
3 Risk of damage by freezing
2
1
3
-16
-10
-20
-30
-40
-50
10 20 30 40 500
0
%
B AC
Only pour pre-mixed coolant into the cooling system.
NOTE
Coolant additives must be as follows:
• An antifreeze content of minimum 35 and maximum 60
percent by volume when there is a risk of freezing
NOTE
Coolant
Figure 359