Fluid · Coolant
Coolant
for 1994-2007 Dodge Ram 2500 5.9L I6 Cummins Diesel · 4WD
Fluid Type
Ethylene glycol 50/50 (green conventional early, HOAT later)
Spec: ASTM D3806
Capacity
28qt
26.49 L
Drain & Refill
24 qt
22.7 L
Change Interval
100,000 mi
160,900 km
Data quality
Calibrated
Platform-calibrated book-style value. Verification program ongoing.
Notes
1994-2001: conventional green with SCA additives. 2002+: HOAT (Hybrid Organic Acid Technology) orange/pink. Extended life coolant in later years
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