Fluid · CoolantCoolantfor 2020 Ram 3500 6.7L I6 Cummins Diesel · RWDFluid TypeMopar OAT Coolant (Purple)Capacity18qtNotesUse pre-mixed or mix 50/50 with distilled waterOther fluid systems on this vehicleBrake FluidEngine Oil13 qtPower SteeringRear Differential2 qtAutomatic Transmission10 qtWasher Fluid3.5 qt📝 Suggest a correction to this fluid spec