Depends on which motor you have in it. The F700 was available with a number of petrol and diesel motors to choose from.
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.
4.8 quarts
V6 ENGINE 5.0 Quarts V8 ENGINE 6.0 Quarts
( 5 quarts ) with engine oil filter change
9.5 quarts
( 5 quarts ) with engine oil filter change
SPI engine: 4.0 Quarts (3.78L) Zetec engine: 4.5 Quarts (4.25L) Ford recommends SAE 5W-20 oil for both.
With engine oil filter change ( 5 quarts of engine oil )
( 6 quarts ) with engine oil filter change
8
If it is in the Ford F-150 ( 6 quarts with engine oil filter change )