Specifications

Maintenance
TX,90,JC1144 –19–23MAY96–1/1
DIESEL ENGINE COOLANT
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 percent mixture of
concentrate and 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:
• ASTM D5345 (prediluted coolant)
• ASTM D4985 (coolant concentrate) in a 40 to 60
percent mixture of concentrate with quality water
Coolants meetings these specifications require use of
supplemental coolant additives, formulated for heavy-
duty diesel engines, for protection against corrosion
and cylinder liner erosion and pitting.
A 50 percent 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 24 months or 2000 hours of operation.
When John Deere PREDILUTED ANTIFREEZE/
SUMMER COOLANT is used, the service interval may
be extended to 36 months or 3000 hours of operation.
90–3
PN=169