The 2010 Ford F-250 owner Guide shows :
7 quarts ( 6.6 liters ) with engine oil filter change
It should be the 6.8 liter engine and the capacity is 6 quarts
6.0 gallons
'03 6.0 takes 15 quarts. '04 should be the same.
7.5
7.3 Liter Turbo
According to the 2003 Ford F-250 Owner Guide : With engine oil filter change : ( the 5.4 liter V8 engine takes 5.7 liters / 6.0 U.S. quarts of 5W-20 engine oil )
4 gallons
The 2009 Ford F250 6.4 liter diesel pickup truck has a listed towing capacity of 8500 pounds. The manufacturer recommends that you do not exceed the towing capacity.
In a 2004 Ford F-250 : Gasoline engine choices ( 5.4 liter V8 and 6.8 liter V10 ) Diesel engine ( I believe that is 6.0 liter )
Mine is 6.5 quarts. I have an 04 Superduty with the 5.4 liter V8...
1994-2003
The fuel capacity of a Ford F250 7.3 liter long bad truck is listed as 28 gallons. Ford offered an option for a second fuel tank doubling the fuel capacity.