Table 2-1. Freezing Points, Composition and Specific Gravities of Military Anti-freeze Materials

TM 5-6115-465-12

TO 35C2-3-446-1

NAVFAC P-8-625-12

TM 06858B/06859D-12

Table 2-1.

Freezing Points, Composition and Specific Gravities

of Military Anti-freeze Materials

Ethylene glycol coolant

Pints of inhibited

solution specific

glycol per gal. of

Lowest expect ed

gravity at 68°F3

coolant 1

ambient temp. °F

1.022

Issued full strength and ready

+20

1-1/2

1.036

mixed for 0° to -65°F

+10

1.047

temperatures for both

2-3/4

1.055

3-1/4

initial installation and

-10

1.062

3-1/2

replenishment of losses.

-20

1.067

-30

1.073

4-1/4

-40

DO NOT DILUTE WITH WATER

-50

Arctic anti-freeze

-60

preferred

OR ANY OTHER SUB-

STANCE.

-75

Maximum protection is obtained at 60 percent by volume (4.8 pints of ethylene glycol per gallon of

solution.

Military Specification MIL-C-11755 Arctic type, nonvolatile anti-freeze 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 the ambient temperature remains for extended periods close to -40°F

or drops below, to as low as -90°F.

Use an accurate hydrometer. To test hydrometer, use 1 part ethylene glycol anti-freeze to 2 parts

water. This should produce a hydrometer reading of 0oF .

WARNING

(b) Fill the cooling system with cool-

ant as specified in table 2-1 and replace cap.

When filling the fuel tank, maintain metal-

to-metal contact between the fuel tank

filler neck and the fuel nozzle to prevent

sparks from static electricity. There

shall be no smoking or open flames in the

vicinity of the fueling operation.

CAUTION

(3) Fuel System.

JP-4 fuel is considered an emergency fuel

only.

(a) Check to see that the fuel tank

drain valve (84, figure 3-22) is closed and the cap

is installed.

(d) Install the fuel tank filler cap.

(b) Remove the fuel tank filler cap.

Change 12

2-2