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The concentration of coolant additives is gradually depleted during engine operation. For all recommended coolants, replenish additives between drain intervals by adding a supplemental coolant additive every 12 months or as determined necessary by coolant testing.
John Deere COOLANT CONDITIONER is recommended as a supplemental coolant additive in John Deere engines.
IMPORTANT:
Do not add a supplemental coolant additive when the cooling system is drained and refilled with John Deere COOL-GARD.
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If other coolants are used, consult the coolant supplier and follow the manufacturer's recommendation for use of supplemental coolant additives.
The use of non-recommended supplemental coolant additives may result in additive drop-out and gelation of the coolant.
Add the manufacturer's recommended concentration of supplemental coolant additive. DO NOT add more than the recommended amount.
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