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 )
In my manual for 3.0tdi 54 reg it says 9l of oil.
Jimmy Kimmel Live - 2003 1-54 was released on: USA: 5 April 2003
Amor descarado - 2003 Borrachos 1-54 was released on: USA: 20 November 2003
Jimmy Kimmel Live - 2003 2-54 was released on: USA: 24 October 2003
54 litres
Jimmy Kimmel Live - 2003 11-54 was released on: USA: 8 October 2013
Jimmy Kimmel Live - 2003 3-54 was released on: USA: 11 March 2004
Jimmy Kimmel Live - 2003 4-54 was released on: USA: 14 June 2005
Jimmy Kimmel Live - 2003 6-54 was released on: USA: 10 April 2008
Jimmy Kimmel Live - 2003 7-54 was released on: USA: 26 March 2009
Jimmy Kimmel Live - 2003 9-54 was released on: USA: 14 December 2010
Jimmy Kimmel Live - 2003 8-54 was released on: USA: 24 November 2009