According to the 2011 Ford F-250 Owner Guide :
With engine oil filter change :
( 7.0 quarts ) for the 6.2 liter gas engine
If you are referring to the diesel engine, its capacity is 15 quarts, but if you are referring to the gasoline engine, the capacity is 6 quarts.
According to the 2008 Ford F-250 diesel supplement : With engine oil filter change : ( 15.0 U.S. quarts )
The 2002 Ford F250 with the 7.3L diesel engine requires 15 quarts of oil.
According to the 2008 Ford F-250 diesel supplement : 15 quarts ( 14.2 liters ) with engine oil filter change on the 6.4 L diesel engine
A 2004 Ford F250 Super Duty Pick Up with 6.0 V8 Diesel engine requires 15.0 quarts of oil.
It should be the 6.8 liter engine and the capacity is 6 quarts
According to the 1997 Ford F-250 Light Duty Owner Guide : With engine oil filter change : The 5.4 liter V8 engine takes ( 6.0 U.S. quarts )
According to the 2004 Ford F-250 Owner Guide : With engine oil filter change : The 5.4 liter gasoline V8 engine takes : ( 6.0 U.S. quarts of 5W-20 )
6 quarts ( 5.7 liters ) WITH ENGINE OIL FILTER CHANGE - according to the 1997 Ford F-250 light duty owners manual for the 5.4 L - V8 engine
'03 6.0 takes 15 quarts. '04 should be the same.
2002 diesel 7.3 will ho;d 14 quarts of engine oil
According to the 2003 Ford F-250 Owner Guide : With engine oil filter change : The 6.8 liter V10 gasoline engine takes ( 5.7 liters / 6.0 U.S. quarts of 5W-20 )