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So I have a new to me 2003, F350 Dually with a 7.3L diesel.
My question is, does anyone use additives for the fuel? On our boat we use a fungicide to prevent growth here in the PNW. But that fuel sits for along periods of time. I burn through a tank of diesel in my truck about every 3 weeks. But I am also concerned about the injectors as I operate on roads instead of highways most of the time.