JOINT GP-UNIV 2309693 - Caterpillar

General Recommendations
Never add coolant to an overheated engine. Engine damage could result. Allow the engine to cool first.
During shipping and storage, the engine must be protected from damage that can be caused by freezing of the cooling system. If the engine is shipped to a site with freezing temperatures and/or if the engine is stored in a location with freezing temperatures, the cooling system must contain antifreeze that will withstand the lowest ambient temperature. Frequently check the concentration of glycol in the coolant/antifreeze. Ensure that the concentration is adequate in order to prevent freezing. Otherwise, the cooling system must be completely drained, including pumps and coolers..For engines in any location, periodically check the concentration of the additives in the coolant/antifreeze. Ensure that the concentration is adequate in order to help prevent corrosion and other harmful conditions.
Never operate an engine without water temperature regulators in the cooling system. Water temperature regulators help to maintain the engine coolant at the proper operating temperature. Cooling system problems can develop without water temperature regulators.
Fill the cooling system no faster than 19 L (5 US gal) per minute to avoid air locks.
After a cooling system has been refilled, monitor the level of the coolant/antifreeze in the expansion tank. Maintain the level above the minimum mark until all of the air has been purged from the system. Then maintain the proper level for normal operation.During normal operation, frequently check the level of the coolant/antifreeze in the expansion tank. If the level is low, add the proper mixture of coolant/antifreeze.For engines in any location, check the concentration of the conditioner in the coolant/antifreeze according to the engine Operation and Maintenance Manual, "Maintenance Interval Schedule". Obtain an S O S coolant analysis (Level 1) or use the appropriate test kit. Ensure that the concentration is adequate in order to help prevent corrosion and other harmful conditions.To further monitor the cooling system, obtain regular S O S coolant analyses (Level 2) according to the engine Operation and Maintenance Manual, "Maintenance Interval Schedule".Recommended Coolant/Antifreeze
Do not use Extended Life Coolant (ELC) with Cat Gas Engines.ELC was not formulated for use in Cat Gas Engines.Do not use heat transfer fluids in Cat Gas Engines.Use only the coolant/antifreeze that is recommended.
The coolants that are recommended or acceptable for use in Cat Natural Gas Engines are listed in Table 2.
Table 1
Recommendations For Finished Coolants For Use In Cat Natural Gas Engines
Coolant Type Recommendation Product Service Hours(1) (2) Required Maintenance(3)
Cat NGEC, Cat DEAC, Cat SCA, Commercial Conventional Coolants Preferred Cat NGEC 3000 hours or 3 years SCA at maintenance interval
Acceptable Cat DEAC
Cat SCA (water based)(4) 3000 hours or 3 years SCA at maintenance interval
Min requirements for fully formulated heavy duty commercial coolants ASTM D6210 and Nitrite (NO2) with the