Depends on which motor you have in it. The F700 was available with a number of petrol and diesel motors to choose from.
4.8 quarts
The Ford F700 with a 429 gas engine typically requires about 6 to 7 quarts of engine oil, including the oil filter. It's always a good idea to consult the owner's manual or check with a dealership for the most accurate specifications for your specific vehicle.
15 quarts
I was looking at the 2010 Ford F-250 diesel supplement and it shows : With engine oil filter change ( 15.0 quarts )
about 15qts
12 quarts are needed
A Ford F 250 diesel truck takes approximately 14 quarts of oil. The oil needs to be changed about every 7000 miles.
The 1984 Ford F700 with a 429 gas engine typically requires about 6 quarts of oil when using a standard oil filter. However, it's always best to consult the owner's manual for the most accurate specifications, including any specific recommendations for oil type and filter.
2002 diesel 7.3 will ho;d 14 quarts of engine oil
I was looking at the 1999 Ford F-250 , 7.3L DIESEL supplement and it shows : With engine oil filter change : ( 15.0 U.S. quarts )
A 2004 Ford F250 Super Duty Pick Up with 6.0 V8 Diesel engine requires 15.0 quarts of oil.