Fluid · Coolant
Coolant
for 1999 Ram 2500 5.9L I6 · RWD
Fluid Type
Ethylene glycol-based coolant 50/50
Spec: ASTM D3306
Capacity
28qt
26.49 L
Drain & Refill
24 qt
22.7 L
Change Interval
100,000 mi
160,900 km
Data quality
Book-style estimate
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Notes
Cummins diesel cooling system. Use HOAT or OAT extended-life coolant. Includes block heater if equipped.