I picked up my '03 250 PSD used, and it had the basic owners manual in it, which of course refers you to the "6.0 Liter Power Stroke Direct Injection Turbo Diesel Owner’s Guide Supplement" whenever a diesel-oriented subject comes up.
That supplement wasn't in the truck. I'm guessing I can order it from Ford, but anyone have a source? I've found the "basic" owner's manual online in PDF, but not the 6.0L supplement.
another place to try www.ford.com...
click the ford logo, about half way down on the left
select Owners on the top right,
register with your vin,
and it has all kind of stuff on there - including service intervals, etc...