OPM 260 en-GB
44
©
Scania CV AB 2021, Sweden
Cooling system
Antifreeze and corrosion protection
concentration table, US gallons
35% by volume of antifreeze provides sufficient
corrosion protection.
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 per cent by volume (freezing point -
22°F). According to the table, 4.8 US gallons
of ethylene 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 = 1.1 US gallons).
Adequate corrosion protection
Volume of ethylene glycol (%)
35
40
45
50
60
Cooling system volume
Ice slush forms (°F)
-6
-11
-22
-36
-58
(US gallons)
Volume of ethylene glycol (US gal
-
lons)
2.9
3.2
3.7
4
4.8
7.9
3.7
4.2
4.8
5.3
6.3
10.6
4.8
5.3
6.1
6.6
7.9
13.2
5.5
6.3
7.1
7.9
9.5
15.9
6.6
7.4
8.5
9.2
11.1
18.5
7.4
8.5
9.5
10.6
12.7
21.1
8.5
9.5
10.8
11.9
14.3
23.8
9.2
10.6
11.9
13.2
15.9
26.4
10.3
11.6
13.2
14.5
17.4
29.1
11.1
12.7
14.3
15.9
19
31.7
12.2
13.7
15.6
17.2
20.6
34.3
12.9
14.8
16.6
18.5
22.2
37
14
15.9
18
19.8
23.8
39.6
14.8
16.9
19
21.1
25.4
42.3
15.9
18
20.3
22.5
26.9
44.9
16.6
19
21.4
23.8
28.5
47.6
17.7
20.1
22.7
25.1
30.1
50.2
18.5
21.1
23.8
26.4
31.7
52.8
