Fluid · CoolantCoolantfor 2021 GMC Yukon 3.0L I6 Duramax Diesel · 4WDFluid TypeACDelco DEX-COOL (Orange)Capacity10qtNotesUse pre-mixed or mix 50/50 with distilled waterOther fluid systems on this vehicleBrake FluidEngine Oil7 qtFront Differential1.5 qtPower SteeringRear Differential2 qtTransfer Case2.5 qtAutomatic Transmission13.5 qtWasher Fluid3.5 qt📝 Suggest a correction to this fluid spec