HMMWV coolant ratio changed.
Here's the latest scoop on the HMMWV's antifreeze-to-water coolant coolant (kōō´l nt),
n mixture rates:
* Use a 50/50 mixture of antifreeze antifreeze, substance added to a solvent to lower its freezing point. The solution formed is called an antifreeze mixture. Antifreeze is typically added to water in the cooling system of an internal-combustion engine so that it may be cooled below the freezing point and water for temperatures -34[degrees] F and above.
* Use a 60/40 mixture of antifreeze and water for arctic conditions at -62[degrees] F to +40[degrees] F.
Jot these changes down until they appear in TM 9-2320-280-series and TM 9-2320-387-series manuals.
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