SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE A coolant system properly maintained and protected with supplemental coolant inhibitors can be operated up to the intervals listed. At these intervals the coolant must be drained and disposed of in an environmentally responsible manner according to state and/or federal (EPA) recommendations. 1 Proper maintenance involves periodic evaluation using PowerTrac® 3-Way Coolant Test Strips and the addition of required SCA, as indicated by the test strip. 2 To verify coolant acceptability, submit a sample to DDC for coolant analysis every 3 years, 300,000 miles (480,000 km) or 6,000 operating hours, whichever comes first.
Submit sample using PowerTrac coolant analysis kit, part number 23516921 (IEG/IPG coolant) or 23523398 (organic coolant). 3 OAT coolants require the addition of an extender every 2 years, 300,000 miles (480,000 km), or 5,000 hours, whichever comes first. Use 1 pint to 20 gallons of OAT coolant. Table 12 Coolant Drain Intervals All information subject to change without notice.
61 DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION Coolant Type Coolant Replacement Interval A 50/50 mix of POWER COOL® fully formulated, inhibited ethylene glycol antifreeze and water or a 50/50 mix of fully formulated, inhibited propylene glycol antifreeze and water With proper maintenance1 coolant can be operated 2 years, 300,000 miles (480,000 km), or 4,000 hours, whichever comes first. At this time the cooling system must be completely drained and cleaned before refill. A 50/50 mix of phosphate-free TMC RP-329 “Type A“ (propylene glycol) antifreeze and water.
With proper maintenance1 coolant can be operated for the life of the engine until overhaul.2 For life to overhaul, pre-charged coolant in combination with a need-release filter must be used. At this time the cooling system must be completely drained and cleaned before refill. A 50/50 mix of OAT (organic acid technology) coolant and water. With proper maintenance coolant can be operated 4 years, 600,000 miles (960,000 km), or 10,000 operating hours, whichever comes first. 3 At this time the cooling system must be completely drained and cleaned before refill.