Fluid · Coolant
Coolant
for 1999 Ram 2500 5.9L I6 · 4WD
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
Notes
Cummins diesel cooling system. Use HOAT or OAT extended-life coolant. Includes block heater if equipped.
Other fluid systems on this vehicle
A/C Refrigerant
A/C Refrigerant
Brake Fluid
1.5 qt
Brake Fluid
1.5 qt
Engine Oil
11 qt
Engine Oil
11 qt
Front Differential
3 qt
Power Steering
2.5 qt
Power Steering
2.5 qt
Rear Differential
4.75 qt
Rear Differential
4.75 qt
Transfer Case
2.5 qt
Automatic Transmission
14 qt
Automatic Transmission
14 qt
Manual Transmission
4 qt
Manual Transmission
4 qt
Washer Fluid
4 qt
Washer Fluid
4 qt