GENERAL COOLANT SPECIFICATIONS NOTE 1 - After draining and replacing coolant, always required to precharge the cooling system. Four bottles of precharge the cooling system to maintain the powder, part number DCA95, will provide a sufficient DCA4 concentration between 1.0 and 2.0 units amount of DCA4 units (80) to precharge the example per 3.8 R (1 US gal). cooling system. When performing service which requires draining ! Install the appropriate service filter at the next the cooling system, discard the coolant. Reusing and subsequent maintenance intervals.
coolant can introduce contaminates or over concentrated chemicals, resulting in premature failure of cooling NOTE 3 - Change the coolant filter at every engine oil system components. and filter change interval to protect the cooling system. ! Install appropriate service filter listed in the above table based on cooling system capacity. Example: 95 gal (360 R ) cooling system R (1 US gal) of coolant in the system. Less than 0.5 unit capacity per 3.8 R (1 US gal) indicates an under-concentrated -15 Units (1) WF-2075 Filter coolant solution. More than 2.0 units per 3.8 R (1 USgal) 80 Units indicates an over-concentrated coolant solution.
Maintain a nominal concentration of 1.0 DCA4 unit per 3.8 ! The answer represents the additional units To check the DCA4 concentration level, use the Fleet- guard coolant test kit, CC2626. Instructions are included with the test kit.
DCA4 Unit Concentration Guide 01-13 Number of Solution A Drops to Cause Color Change Coolant Condition Action Required 0 to 10 Drops Extremely under-concentrated - less than 0.4 DCA4 units per 3.8 R (1 US gal) Initially charge the system to a minimum of 1.0 DCA4 unit per 3.8 R (1 US gal) 11 to 16 Drops Marginally under-concentrated - 0.45 to 0.8 DCA4 units per 3.8 R (1 US gal) Add DCA4 liquid units to maintain 1.0 DCA4 unit per 3.8 R (1 US gal) minimum or change the DCA4 coolant filter 17 to 25 Drops Acceptable - 0.85 to 1.3 DCA4 units per 3.8 R (1 US gal) NONE 26 to 35 Drops Highly acceptable - 1.35 to 2.0 DCA4 units per 3.8 R (1 US gal) NONE 36 to 55 Drops Marginally over-concentrated - 2.1 to 3.3 DCA4 units per 3.8 R (1 US gal) Review maintenance practice Over 55 Drops Extremely over-concentrated Drain 50% of the coolant and replace with water antifreeze mixture.
Retest the system for correct DCA4 unit concentration.