27 Maintenance Section Cooling System Specifications

ELC is available in a 1:1 premixed cooling solution with distilled water. The Premixed ELC provides freeze protection to −36 ￿C (−33 ￿F). The Premixed ELC is recommended for the initial fill of the cooling system. The Premixed ELC is also recommended for topping off the cooling system.

ELC Concentrate is also available. ELC Concentrate can be used to lower the freezing point to −51 ￿C (−60 ￿F) for arctic conditions.

Containers of several sizes are available. Consult your Caterpillar dealer for the part numbers.

Note: Caterpillar developed the EC-1 specification. The EC-1 specification is an industry standard. The EC-1 specification defines all of the performance requirements that are needed for an engine coolant to be sold as an extended life coolant for Caterpillar engines. ELC can be used in most OEM engines of the following types: diesel, gasoline, and natural gas. ELC meets the performance requirements of “ASTM D4985” and “ASTM D5345” for heavy-duty low silicate antifreeze/coolants. ELC also meets the performance requirements of “ASTM D3306” and “ASTM D4656” for automotive applications.

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Extended Life Coolant (ELC) Cooling System Maintenance

SMCS Code: 1350; 1352; 1395

Proper additions to the Extended Life Coolant

NOTICE

Use only Caterpillar products or commercial products that have passed Caterpillar’s EC-1 specification for pre-mixed or concentrated coolants.

Use only Caterpillar Extender with Extended Life Coolant.

NOTICE

Do not use a conventional coolant to top-off a cooling system that is filled with Extended Life Coolant (ELC).

Do not use standard supplemental coolant additive (SCA). Only use ELC Extender in cooling systems that are filled with ELC.

Caterpillar ELC Extender

Caterpillar ELC Extender is added to the cooling system halfway through the ELC service life. Treat the cooling system with ELC Extender at 3000 hours or one half of the coolant service life. Use Table 13 in order to determine the proper amount of ELC Extender that is required.

Containers of several sizes are available. Consult your Caterpillar dealer for the part numbers.

Table 13

Caterpillar ELC Extender Additions by

Cooling System Capacity

Cooling System Capacity

Addition of ELC

Extender

 

 

 

22 to 30 L (6 to 8 US gal)

0.57 L (20 fl oz)

 

 

31 to 38 L (9 to 10 US gal)

0.71 L (24 fl oz)

 

 

39 to 49 L (11 to 13 US gal)

0.95 L (32 fl oz)

 

 

50 to 64 L (14 to 17 US gal)

1.18 L (40 fl oz)

 

 

65 to 83 L (18 to 22 US gal)

1.60 L (54 fl oz)

 

 

84 to 114 L (23 to 30 US gal)

2.15 L (72 fl oz)

 

 

115 to 163 L (31 to 43 US gal)

3.00 L (100 fl oz)

 

 

164 to 242 L (44 to 64 US gal)

4.40 L (148 fl oz)

 

 

For cooling system capacities that exceed the capacities that are specified in Table 13, use the equation that is in Table 14 in order to determine the proper amount of ELC Extender that is required.

Table 14

Mixing Extended Life Coolant with other products reduces the Extended Life Coolant service life. Failure to follow the recommendations can reduce cooling system components life unless appropriate corrective action is performed.

In order to maintain the correct balance between the antifreeze and the additives, you must maintain the recommended concentration of Extended Life Coolant (ELC). Lowering the proportion of antifreeze lowers the proportion of additive. This will lower the ability of the coolant to protect the system from pitting, from cavitation, from erosion, and from deposits.

Equation For Adding ELC Extender To ELC

V × 0.02 = X

V is the total volume of the cooling system.

X is the amount of ELC Extender that is required.

Table 15 is an example for using the equation that is in Table 14.