well ya but there has to be some addative that lubracates and cleans fuel up better and i know you sould run cetane booster if you still running egr system helps coking issue

 

yeah I'm not sure on the powerstrokes to be honest with ya, I'd say as long as you're measuring out the proper dose of powerservice you'll be fine, just don't over do it, if anything I think you'd be better off under treating the fuel just to be on the safe side, cause I know some of the chemicals found in the additives can be harmful to the injection system in large quantities

 

haha well i usually just pour the whole bottel in tank bottle treats 100 gal my tanks 28 but i havnt lost any injectors due to that yet

 

well if it hasn't hurt it yet I don't see any reason to quit, except wasting money I think