Cooling system Antifreeze and corrosion inhibitor con- centration table 35% by volume of antifreeze provides sufficient protection against corrosion. Example: 1. The total volume of the cooling system is 10.6 US gallons in this example. 2. 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. 3. The measured concentration of ethylene gly- col is 45% by volume (freezing point -22°F). According to the table, 4.8 US gallons of eth- ylene glycol are required in the cooling sys- tem. 4.
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).
00:23-02 en-GB 22 © Scania CV AB 2016, Sweden Adequate protection against corrosion Volume of ethylene glycol (%) 35 40 45 50 60 Cooling system volume (US gal- lons) Ice slush forms (°F) -6 -11 -22 -36 -58 Volume of ethylene glycol (US gallons) 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