TM 5-6115-593-12
TO 35C2-3-463-1
Table 4-1. Freezing Points, Composition, and Specific Gravities of Military Antifreeze
LOWEST
PINTS (LITERS OF
ETHYLENE GLYCOL
EXPECTED
INHIBITED
COOLANT SOLUTION
AMBIENT
GLYCOL PER
SPECIFIC GRAVITY
TEMPERATURE
GALLONS (LITERS) OF
COMPOUNT, ANTIFREEZE
AT
1
2
680F (200C)
OF (0C)
COOLANT
ARTIC
PINTS LITERS
+20 (-6.7)
1-1/2 (0.7098)
Issued full strength
1.022
+10 (-12.2)
2 (0.9464)
and ready mixed for
1.036
0 (-17.8)
2-3/4 (1.3013)
0 to-65°F (-17.8 to
1.047
-10 (-23.3)
3-1/4 (1.5379)
-54°C) temperatures
1.055
-20 (-28.9)
3-1/2 (1.6562)
for both initial instal-
1.062
-30 (-34.4)
4 (1.8927)
lation and replenishment
1.067
-40 (40.0)
4-1/4 (2.0111)
of losses
.1.073
-50 (-45.6)
ARTIC
DO NOT DILUTE
-60 (-51.1)
ANTIFREEZE
WITH WATER OR
-75 (-59.4)
PREFERRED
ANY OTHER SUBSTANCE
1. Maximum protection is obtained at 60 percent volume (4.8 pints (2.27
liters)) of ethylene glycol per gallon (3.785 liters) of solution.
2. Military Specification MIL-A-11755 Arctic type, nonvolatile antifreeze
compound is intended for use in the cooling system of liquid-cooled
internal combustion engines. It is used for protection against freezing
primarily in Arctic regions where ambient temperature remains for
extended periods close to -40°F (-40°C) or drops below, to as low as -75°F
(-59.4°C).
3. Fasten a tag near the radiator filler cap indicating the type antifreeze.
4-7
