2320-01-318-9902 EIC:B5C, VOLUME NO. 2">
Do not use test stick at temperatures below 50 F (10 C).
Test for reserve alkalinity (corrosion protection) using reserve alkalinity test kit. Dip test stick in coolant and
Wait 15 seconds and compare color on stick with table 6-2.
· Do not add extender to Arctic-type antifreeze. Use it as issued. Dilution may
result in damage to cooling system.
· Do not add extender to cooling system if coolant has been extended before.
If coolant is unsafe, add three percent by volume (1 pint per 17 quarts) of antifreeze extender additive to cooling
system. Note action taken in vehicle maintenance log.
(7) Withdraw small amount of coolant from radiator.
Place in clean container.
Inspect coolant for presence of
excessive rust, foreign particles, or sediment.
Drain and replace coolant in cooling system if either antifreeze protection or reserve alkalinity test fails or visual
inspection indicates particles are present.
Table 6-1. Guide for Preparation of Ethylene Glycol Antifreeze Solutions
Pints of Ethylene Glycol
Antifreeze to be Included
in Preparation of 1 Gallon
+20 F (-7°C)
+10°F (-12 C)
+0°F (- 18 C)
-20°F (- 29 C)
-30 F (-34 C)
-40 F (-40 C)
-55 F (-48 C)
Table 6-2. Coolant Color Guide
Coolant is safe to use.
Coolant may be used until next PMCS.
Coolant is unsafe to use.
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