What is the cooling system capacity of a 2002 ford f 250 7.3 L diesel?

I was looking at the 2002 Ford F-250 , 7.3 Diesel Supplement and it shows :

The engine cooling system capacity is ( 31.0 liters / 32.75 U.S. quarts )

* that includes the heater and the 4.7 L / 5.0 quarts in the engine coolant reservoir

* it came from the factory with a 50 / 50 mix of distilled water and antifreeze