After changing the coolant, the initial charge of DCA4 (or
equivalent) concentration must be 1.5 unit per 3.8 liters
[1 U.S. gallon] of coolant in the system.
NOTE: The cooling system must be clean before adding
DCA4 (or equivalent). Refer to Procedure 1-08.
The DCA4 concentration must not fall below 1.2 units or
exceed 3 units per gallon of cooling system capacity.
If make-up coolant is added between intervals, additional
DCA4 (or equivalent) will be required. Any coolant added
must be premixed with DCA4 to a concentration of 1.2
unit per 3.8 liters [1 U.S. gallon] of coolant. With the
servicefilter installed, the totalsystem concentration must
be 1.5 units DCA4 per gallon of coolant.
Caution: Insufficient concentration of the coolant addi-
tive will result in liner pitting and engine failure.
Use the correct FleetguardT coolant filter to maintain the
recommended DCA4 concentration in the system.
Maintain the correct concentration by changing the ser-
vice coolant filter at each oil drain interval.
NOTE: The correct filter is determined by the total cooling
system capacity and other operational factors. Refer to the
FleetguardT DCA4 Service Filter Selection Chart on previ-
ous page.
Section 1 - Cooling System Coolant Additive Requirement (1-05)
N14 Page 1-15
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