TM 5-3895-382-24 SUPPLEMENTAL COOLANT ADDITIVE ELEMENTS Cooling System Capacity Part Number Amount (Every 250 Hours) ¹ 22-30 Liters (6-8 US gal) 111-2370 1 container 30-49 Liters (8-10 US gal) 111-2369 1 container 49-64 Liters (13-17 US gal) 9N-3368 1 container 64-83 Liters (17-22 US gal) 111-2371 1 container 83-114 Liters (22-30 US gal) 9N-3718 1 container 114-163 Liters (30-44 US gal) 111-2371 2 containers 163-242 Liters (44-64 US gal) 9N-3718 2 containers ¹Do not use a supplemental coolant additive element and a liquid supplemental coolant additive at the same time.  Do not   exceed   the   maximum   concentration   of   six   percent. Check    the    concentration    with    a    supplemental    coolant additive test kit. Permitted-Water/Supplemental Coolant Additive NOTICE Never use water alone without supplemental coolant additive    or    inhibited    coolant.        Water    alone    is corrosive at engine operating temperatures. NOTICE A    mixture    of    water    and    supplemental    coolant additive does not protect against freezing or boiling. NOTICE A coolant mixture of water and supplemental coolant additive  will  cool  and  provide  some  protection  to engine  components,  but  it  will  NOT  provide  normal engine service life. NOTICE Caterpillar's recommendation for proper coolant is a minimum  concentration  of  30  percent  glycol  and  70 percent  acceptable  water  and  supplemental  coolant additive  (three  percent  of  the  total  mixture).    This recommendation will maintain cooling system corrosion protection. In applications where freeze protection is not required, or where  antifreeze  is  not  available,  a  coolant  mixture  of acceptable water and supplemental coolant additive can be used.  A water/supplemental coolant additive system should   maintain   a   six   to   eight   percent   supplemental coolant  additive  concentration.    DO  NOT  exceed  eight percent maximum supplemental coolant additive concentration. Supplemental coolant additive concentration levels must be monitored. The   8T5296   Test   Kit   can   be   used   to   evaluate   the supplemental coolant additive concentration in water/supplemental   coolant   additive   coolant,   with   the following  modifications  to  label  instruction  Step  3  and Step 5. STEP  3.    -  Add  tap  water  to  the  vial  up  to  the  20  ml mark. STEP  5  -With  the  defined  procedure,  the  six  to  eight percent  concentration  will  yield  a  20  to  27  drop  range. Fewer drops indicate a low concentration of supplemental coolant additive and more drops indicate a high concentration. Adjust the concentration appropriately. If   the   supplemental   coolant   additive   concentration   is greater  than  the  maximum  of  eight  percent:  drain  some of  the  coolant,  refill  the  system  with  acceptable  water, and retest the concentration level. Maintenance Section Cooling System Specifications 1-30