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 Testing Diesel Engine Coolant Testing Diesel Engine Coolant method to check the freeze point and additive levels of your engine coolant. Maintaining adequate concentrations of glycol and inhibiting additives in the coolant is critical to protect the engine and cooling system against freezing, corrosion, and cylinder liner erosion and pitting.
Compare the results to the supplemental coolant additive (SCA) chart to determine the amount of inhibiting additives in your coolant and whether more John Deere COOLANT CONDITIONER should be added. Test the coolant solution at intervals of 12 months or less and whenever excessive coolant is lost through leaks or overheating. COOLSCAN and COOLSCAN PLUS Coolant test strips For a more thorough evaluation of your coolant, perform a COOLSCAN or COOLSCAN PLUS analysis, where available. See your John Deere dealer for information. Coolant test strips are available from your John Deere dealer.
These test strips provide a simple, effective COOLSCAN is a trademark of Deere & Company COOLSCAN PLUS is a trademark of Deere & Company DX,COOL9 –19–19DEC03–1/1 10-13 021604 PN=43