STOPPER-RUBBER 9G1642 - Caterpillar

Proper Additions to the Cat ELC (Extended Life Coolant)
Use only Cat products or commercial products that have passed the Caterpillar 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.Do not mix brands or types of coolants with different brands or types of SCA or extender. Cat Extender is compatible with Cat ELC. If using non Cat EC-1 coolant, refer to the coolant manufacturer for information on a compatible extender.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, you must maintain the recommended concentration of 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.During daily maintenance, use the premixed Cat ELC as a cooling system top-off. This will bring the coolant up to the proper level. 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. This should be done 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.
Do not top-off the cooling system with water unless there is a specific need to adjust the water/glycol ratio. Compatible 50/50 (water/glycol) coolant is typically used and recommended when cooling system top-off is required.Cat ELC Extender
Cat ELC Extender is added to the cooling system halfway through the ELC service life. Treat the cooling system with ELC Extender at 483 000 km (300,000 miles) or 3 years. Use Table 1 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 1
Cat 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