http://www.redlineoil.com/redlineoil/dfcti.htm

Try this before you spend a $1000 bucks. One bottle per tankful. You can find it at the Parts Shop or your local Pep Boys. Also it might be the timing.

__________________
2000 Ford 7.3 Powerstroke 4x4
2006 Mazda Tribute
1983 Black 300 D (donated to charity)
1993 Teal 300 D (160K) Sold
"I love the smell of burnt diesel fuel in the morning, it smells like ....VICTORY"

Semper Fidelis
USMC 1973-1976