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The engine cooling system is filled to provide year-round protection against corrosion and cylinder liner pitting, and winter freeze protection to -37°C (-34°F).
The following engine coolant is preferred for service:
John Deere PREDILUTED ANTIFREEZE/SUMMER COOLANT
The following engine coolant is also recommended:
John Deere ANTIFREEZE/SUMMER COOLANT CONCENTRATE in a 40 to 60% mixture of concentrate with quality water.
Other low silicate ethylene glycol base coolants for heavy-duty diesel engines may be used if they meet one of the following specifications:
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ASTM D5345 (prediluted coolant)
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ASTM D4985 (coolant concentrate) in a 40 to 60% mixture of concentrate with quality water
Coolants meeting these specifications require use of supplemental coolant additives, formulated for heavy-duty diesel engines, for protection against corrosion and cylinder liner erosion and pitting.
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A 50% mixture of ethylene glycol engine coolant in water provides freeze protection to -37°C (-34°F). If protection at lower temperatures is required, consult your John Deere dealer for recommendations.
Water quality is important to the performance of the cooling system. Distilled, deionized, or demineralized water is recommended for mixing with ethylene glycol base engine coolant concentrate.
IMPORTANT:
Do not use cooling system sealing additives or antifreeze that contains sealing additives.
Coolant Drain Intervals
Drain and flush the cooling system and refill with fresh coolant every 2000 hours or 24 months, whichever occurs first.
When John Deere PREDILUTED ANTIFREEZE/SUMMER COOLANT is used, the service interval may be extended to 3000 hours or 36 months, whichever occurs first.
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