The Ford Truck Enthusiast site has
a great bit of info on what to do about a sour 6.0 (This site is NOT Ford
Corp.) www dot ford-truck dot com. I followed the info from 2003- 2004
until I felt comfortable with ordering my 05 f-350 6.0 So far so good with my
new truck. My old truck was a 91 f 250 XLT 5.8L (gas) and it held up
well enough for me to sell it off my front yard for $7000. Can't beat that for
resale. Try that with a 14 yr old Chevy or Dodge.