Fuels, Lubricants and Coolant Supplemental Coolant Additives 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. 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. John Deere COOLANT CONDITIONER is recommended as a supplemental coolant additive in John Deere engines.
Add the manufacturer’s recommended concentration of supplemental coolant additive. DO NOT add more than the recommended amount. IMPORTANT: Do not add a supplemental coolant additive when the cooling system is drained and refilled with John DeereCOOL-GARD . COOL-GARD is a trademark of Deere & Company DX,COOL4 –19–07NOV03–1/1 CTM100 (06APR04) 01-002-11 P OWER T ECH 10.5 L & 12.5 L Diesel Engines 040604 PN=41 IMPORTANT: Do not use cooling system sealing IMPORTANT: Do not mix ethylene glycol and additives or antifreeze that contains propylene glycol base coolants. sealing additives. DX,COOL3 –19–19DEC03–2/2 01 002 11