Diesel Question ?

I have a 7.3L ford, I wouldn't risk running any gasoline in mine...That crap ULSD Diesel we are forced to run is all ready a lower lubricity then Ford designed the 7.3L to use IMO.
I use the additive POWER SERVICE every fuel up, it cost me about 2 bucks more every time I fill up approximately and the truck seems to like it. It also helps with cold starts.