LINES GP-COOLANT 2148995 - Caterpillar

Do not use a commercial coolant/antifreeze that only meets the "ASTM D3306" specification. This type of coolant/antifreeze is made for light duty automotive applications.
Caterpillar recommends a 1:1 mixture of water and glycol. This mixture of water and glycol will provide optimum performance.Note: Caterpillar DEAC does not require a treatment with an SCA at the initial fill. A commercial coolant/antifreeze that meets "ASTM D4985" or "ASTM D5345" specifications requires a treatment with an SCA at the initial fill.
Table 1
Service Life before Flushing and before Refilling
Coolant Service Life
Caterpillar ELC 12,000 hours or 6 years
Caterpillar DEAC 3000 hours or 2 years
Commercial Heavy-Duty Coolant/Antifreeze 3000 hours or 1 year