BruceinFL said:Not sure but.... When I first got my 2005 Ford diesel truck, I inquired Ford about a fuel additive and was told in no uncertain terms not only no, but hell no. Well, last two times I had the truck in for service, I was given gratis a bottle of Ford's diesel fuel additive. What caused Ford to change their mind? Could it be the crappy diesel fuel the govt is forcing us to buy?
raytronx said:I use a few ounces of Diesel Kleen at each fill. I asked many mechanics and get both answers, not needed and needed. It seems to boost my mileage and power a bit and engine runs quieter. Mines an old truck with a mechanical injection pump so I figure a little lubrication wont hurt.