OPM 250 en-GB 34
©
Scania CV AB 2016, Sweden
Cooling system
Antifreeze and corrosion inhibitor con-
centration table
35% by volume of Scania antifreeze provides
sufficient protection against corrosion.
Example:
• The total volume of the cooling system is
10.6 US gallons.
• The measured concentration of ethylene gly-
col is 35% by volume (freezing point -6°F).
According to the table there are 3.7 US gal-
lons of ethylene glycol in the cooling system.
• The required concentration of ethylene glycol
is 45% by volume (freezing point -22°F). Ac-
cording to the table, 4.8 US gallons of ethyl-
ene glycol are required in the cooling system.
• Since the cooling system already contains
3.7 US gallons, fill another 1.1 US gallons of
ethylene glycol in the cooling system (4.8 -
3.7=1.1USgallons).
For calculation Adequate protection against corrosion
Volume of ethylene glycol
(%) 202530 3540455060
Cooling system
volume (US gal-
lons)
Ice slush forms (°F) 21 16 10 -6 -11 -22 -36 -58
Volume of ethylene glycol
(US gallons)
1.3 1.6 2.1 2.9 3.2 3.7 4 4.8 7.9
1.6 2.1 2.6 3.7 4.2 4.8 5.3 6.3 10.6
2.1 2.6 3.4 4.8 5.3 6.1 6.6 7.9 13.2
2.4 3.2 4 5.5 6.3 7.1 7.9 9.5 15.9
2.9 3.7 4.8 6.6 7.4 8.5 9.2 11.1 18.5
3.2 4.2 5.3 7.4 8.5 9.5 10.6 12.7 21.1
3.7 4.8 6.1 8.5 9.5 10.8 11.9 14.3 23.8
4 5.3 6.6 9.2 10.6 11.9 13.2 15.9 26.4
4.5 5.8 7.4 10.3 11.6 13.2 14.5 17.4 29.1
4.8 6.3 7.9 11.1 12.7 14.3 15.9 19 31.7
5.3 6.9 8.7 12.2 13.7 15.6 17.2 20.6 34.3
5.5 7.4 9.2 12.9 14.8 16.6 18.5 22.2 37
6.1 7.9 10 14 15.9 18 19.8 23.8 39.6
6.3 8.5 10.6 14.8 16.9 19 21.1 25.4 42.3
6.9 9 11.4 15.9 18 20.3 22.5 26.9 44.9
7.1 9.5 11.9 16.6 19 21.4 23.8 28.5 47.6
7.7 10 12.7 17.7 20.1 22.7 25.1 30.1 50.2
7.9 10.6 13.2 18.5 21.1 23.8 26.4 31.7 52.8
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