Coolant Specifications
Engine Coolant
Use a mixture of fill water, antifreeze and Cooling System Conditioner.
Caterpillar Form Number SEBD0518 entitled, "Know Your Cooling System" can provide more detailed specifications.
Fill Water
Always add conditioner to water. Never use plain water.
Acceptable water for use in the ethylene glycol-type antifreeze and water mixture is shown on the chart below:
Acceptable Water
50% Antifreeze Without
Water Content
50% Water
Antifreeze
Chlorides
100 ppm
50 ppm
or less
or less
Sulfates
100 ppm
50 ppm
or less
or less
Hardness as
200 ppm
100 ppm
CaCo3
or less
or less
Dissolved Solids
500 ppm
250 ppm
or less
or less
pH
6.5 or higher
6.5 or higher
ppm = parts per million
Antifreeze
Use ethylene glycol-type antifreeze. Use the correct amount to provide freeze protection to the lowest expected
temperature.
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