Diesel fuel

I have the same truck and use #2 diesel most of the time. We travel Oregon a lot and have been stuck buying up to 20% biodiesel and the engine ran fine.

I do use Optilube XPD additive. My truck was a rough runner when I bought it used. A couple of tanks of the additive smoothed it right out out and made it a little quieter at idle. I may be wasting my money but I am sold on the product.