Lubrication & Maintenance/500 Hour/12 Month IMPORTANT: ALWAYS maintain coolant at correct level and concentration. DO NOT operate engine without coolant even for a few minutes. If frequent coolant makeup is required, the glycol concentration should be checked with JT07298 Coolant/Battery Tester to ensure that the desired freeze point is maintained. Follow manufacturer’s instructions provided with Coolant/Battery Tester. Add the manufacturer’s recommended concentration of supplemental coolant additive. DO NOT add more than the recommended amount. The use of non-recommended supplemental coolant additives may result in additive drop-out and gelation of the coolant.
If other coolants are used, consult the coolant supplier and follow the manufacturer’s recommendation for use of supplemental coolant additives. See DIESEL ENGINE COOLANTS AND SUPPLEMENTAL ADDITIVE INFORMATION for proper mixing of coolant ingredients before adding to the cooling system. DPSG,OUOD002,1921 –19–25FEB03–2/2 30-18 021604 PN=155