Coolant

Mixture 50/50 of water and ethylene glycol (silicate free) antifreeze

Capacity
Without Air Conditioning 16.6 liters (17.5 qt)
With Air Conditioning 19.0 liters (20.0 qt)

C 3500HD Models
Without Air Conditioning 25.0 liters (26.5 qt)
With Air Conditioning 25.5 liters (27.0 qt)