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 TM 5-685/NAVFAC MO-912
D-4. Filling the cooling system.
c. Do not dilute arctic-type antifreeze with water
or inhibitor. It is ready for use as issued.
Refer to the engine manufacturer's literature for
instructions on filling the cooling system. This is
applicable to either new systems or those just
Table D-l. Antifreeze solutions.
cleaned and serviced.
GUIDE FOR PREPARATION OF ETHYLENE
a. Cooling system protection is required for all
GLYCOL ANTIFREEZE SOLUTIONS
liquid cooled diesel engines. In areas where tem-
Lowest Estimated
Pints of Antifreeze Needed to
peratures no lower than -55 degrees F ( -48 de-
Temperature in Area
Prepare -Gallon of Solution
grees C) are expected, prepare a solution according
(-7C)
to the table D-l below. When temperatures below
(- 12C)
2.00
freezing are not expected, use a weak solution such
18C)
2.75
as one pint of ethylene glycol antifreeze for each
(-23C)
3.25
gallon of solution for general protection against rust
20F
29C)
3.50
-30F (-34C)
4.00
build up and scale formation with the engine.
40F
40C)
4.25
b. Use arctic-type antifreeze in areas where tem-
50F
46C)
4.50
peratures below -55 degrees F ( -48 degrees C) are
55F
48C)
4.75
expected.
D-2
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