TM 5-3810-307-24-2-1
CAUTION
Do not add cold coolant to a hot engine.
Engine castings can be damaged. Allow the
engine to cool to below 50C [120F] before
adding coolant.
NOTE
On applications that use a coolant recovery
system, check to make sure the coolant is at
the appropriate level on the coolant recovery
tank depending on engine temperature.
Fill the cooling system with coolant to the bottom of the fill
neck in the radiator fill or expansion tank.