MOTOR 2955440 - Caterpillar

Proper Additions to the Cat ELC (Extended Life Coolant)
Use only Cat products or commercial products that have passed Cat EC-1 specification for pre-mixed or concentrated coolants.Use only Cat ELC Extender with Cat ELC.Do NOT use conventional SCA with Cat ELC. Mixing Cat ELC with conventional coolants and/or conventional SCA reduces the Cat ELC service life.Do NOT mix brands or types of coolant. Do NOT mix brands or types of SCA and/or brands or types of extenders. Different brands or types may use different additive packages to meet the cooling system requirements. Different brands or types may not be compatible.Failure to follow the recommendations can reduce cooling system component life unless appropriate corrective action is performed.
In order to maintain the correct balance between the antifreeze and the additives, maintain the recommended concentration of Cat ELC. Lowering the proportion of antifreeze lowers the proportion of additive. The coolant will not be able to protect the system from pitting, cavitation, erosion, and deposits.During daily maintenance, use the premixed Cat ELC as a cooling system top-off. Check the specific gravity of the coolant system with the 245-5829 Coolant/Battery Tester/Refractometer. This tester gives readings that are immediate and accurate in both degrees Celsius and degrees Fahrenheit. Use Cat ELC Concentrate to restore the proper glycol concentration in the coolant system. Add the concentrate before the engine is exposed to freezing temperatures.
Do not use a conventional coolant to top-off a cooling system that is filled with Cat ELC.Do not use conventional SCA. Only use Cat ELC Extender in cooling systems that are filled with Cat ELC.
Cat ELC Extender
Cat ELC Extender is added to the cooling system halfway through the Cat ELC service life. Treat the cooling system with Cat ELC Extender at 6000 hours or one half of the coolant service life. Refer to your machine Operation and Maintenance Manual for exceptions. Refer to the “Part Number of Coolant” table in this Special Publication, "Coolant Recommendations" article for available quantities and part numbers.Use the formula in Table 2 to determine the proper amount of Cat ELC Extender for your cooling system. Refer to Operation and Maintenance Manual, "Refill Capacities and Recommendations" in order to determine the capacity of the cooling system.
Table 1
Formula For Adding Cat ELC Extender To Cat ELC
V × 0.02 = X
V is the total capacity of the cooling system.
X is the amount of Cat ELC Extender that is required. Table 2 is an example for using the formula that is in Table 1. This example is based on the typical capacity of a D8R Track-Type Tractor.
Table 2
Example Of The Equation For Adding Cat ELC Extender To Cat ELC
Total Volume of the Cooling System (V) Multiplication
Factor Amount of Cat ELC Extender that is Required (X)
94.6 L (25.0 US gal) × 0.02 1.9 L (0.5 US gal)
When using Cat ELC, do not use conventional SCAs, or, if equipped, SCA maintenance elements. In order to avoid SCA contamination of an ELC system, remove the SCA element base and plug off or bypass