TM 5-3895-382-24 Caterpillar's Long Life Coolant/Antifreeze Caterpillar's  Long  Life  Coolant/Antifreeze  anti-corrosion package  is  different  from  the  conventional  antifreezes that have been used.  Long Life Coolant/Antifreeze is an ethylene     glycol     based     coolant/antifreeze     containing organic   corrosion   inhibitors   and   anti-foam   agents   with fewer nitrites than conventional coolants. Long  Life  Coolant/Antifreeze  was  specifically  designed for use in diesel engine cooling systems and natural gas engine cooling systems. Long Life Coolant/Antifreeze extends coolant life to 6000 service hours or four years, whichever comes first.  One addition  of  Caterpillar's  Extender  is  required  to  maintain Long Life Coolant/Antifreeze. Major Long Life Coolant/Antifreeze advantages: Twice the coolant life Considerably less maintenance Improved corrosion protection Better aluminum protection Better liner protection Fewer   additives   (chemicals)   and   no   chemical drop out Longer radiator life Increased water pump seal life Long Life Coolant/Antifreeze is available as a 50 percent Long  Life  Coolant/Antifreeze  and  50  percent  deionized water   solution   or   in   concentrate.      See   the   table   for quantities that are available. AVAILABLE QUANTITIES OF CATERPILLAR LONG LIFE COOLANT/ANTIFREEZE Type Size Part Number Premixed ¹ Bulk 119-5148 208 K (55 US gal) 101-2845 3.8 L (1 US gal) 101-2844 Concentrate ² 3.8 L (1 US gal) 119-5150 1 Premix   50   percent   Long   Life   Coolant/Antifreeze   with   50 percent water. 2 The   LLCA   Concentrate   is   used   to   increase   the   freeze protection.  The Concentrate is not intended to be used as a mix. NOTE:   A   50   percent   Long   Life   Coolant/Antifreeze and    50    percent    deionized    water    solution provides   freeze   protection   to   -37°C   (-34°F) and anti-boil protection to 108°C (226°F).  DO NOT   use   Long   Life   Coolant/Antifreeze   at reduced concentrations (less than 50 percent),  as  the  additives  would  be  reduced along     with     the     antifreeze.          Long     Life Coolant/Antifreeze   concentrate   is   available to  lower  the  coolant  freeze  point  when  used in arctic conditions. Long Life Coolant/Antifreeze     concentration     can     be increased   to   60   percent   for   -52°C   (-62°F) freeze protection. Extender Extender  should  be  added  to  the  cooling  system  at  the 3000 service hours or two years, whichever comes first. See the table to determine the recommended amount of Extender to add to Long Life Coolant/Antifreeze. RECOMMENDED AMOUNT OF EXTENDER BY COOLING SYSTEM CAPACITY Cooling System Capacity Recommended Amount of Extender 22-30 L (6-8 US gal) 0.57 L (20 oz) 30-38 L (8-10 US gal) 0.71 L (24 oz) 38-49 L (10-13 US gal) 0.95 L (32 oz) 49-64 L (13-17 US gal) 1.2 L (40 oz) Operation Section Cooling System Specifications 1-25