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Commercial Extended Life Coolant
Cat does not warrant the quality or performance of non-Cat fluids.
Inorder to be used in Cat diesel engine cooling systems at the published service intervals, select a commercial extended life coolant that meets all the requirements given in Table 1 in this Special Publication.
Table 1
Technical Requirements for Commercial Extended Life Coolants
Specifications Cat EC-1 and "ASTM D6210"
Additional Requirements Organic Additive Technology (OAT) based on a combination of a monocarboxylic acid and a dicarboxylic acid
Phosphate, borate, and silicate free
Minimum typical tolyltriazole level of 900 ppm for new coolants
Minimum typical nitrite level of 500 ppm in new coolants"
Maintenance One time addition of an extender at the mid-life of the coolant in order to maintain the coolant nitrite level between 300 - 600 ppm Note: The Cat EC-1 specification describes the minimum requirements for extended life coolants.Use an extender that is recommended by the EC-1 coolant supplier at mid-life of the coolant.Commercial coolants that do not meet the minimum requirements defined in this Special Publication are not allowed for use in Cat engines.Commercial extended life coolant used in Cat engines must meet all requirements given in Table 1. If the ELC does meet the requirements, the service interval listed in this Special Publication may not be used. Follow the maintenance guidelines for the coolant from the supplier of the commercial extended life coolant. Follow the Cat guidelines for the quality of water and the specified coolant change interval.Note: Coolants must be tested against the Cat EC-1 specification requirements. Coolants that only claim to meet the performance requirements of the Cat EC-1 specification may not meet all the minimum requirements.In order to be marketed as a product that meets Cat EC-1, all Cat EC-1 specification requirements must be met. Requirements include, but are not limited to the following:
Physical and Chemical Properties
Compatibility Characteristics
Bench Testing
Field TestingThe field test includes the use of the following requirements:
Radiator types
Minimum field test duration
Minimum number of diesel engines
Cat diesel engine models of the required minimum power rating