I have a 1989 F-350 7.3 diesel. I've heard of guys running wvo non-filtered in there trucks , I just want to know is, what will this do to my truck and is it true.

I will use on tank for wvo and the other for clean diesel.

e-mail me on what you think

southernclassinc@hotmail.com

 

You certainly can although I would not like to run unfiltered.
Scroll down a bit from this forum page to the Diesel Section and post on the Pre-powerstroke page. There is plenty of info there on what you are wanting to do and plenty of guys who are doing it.