Two major changes in modern diesel fuel makes a dramatic difference in the dependability and long term life of your diesel engine. First, the process used to remove sulfur from diesel fuel removes lubricity affecting the life of all the moving parts in your diesel fuel delivery system. In addition to a reduction in lubrication, sulfur acted as a biostat in that while it did not kill microbial growth, it inhibited runaway outbreaks. Fuel that historically did not have microbial issues now requires constant treatment in order to prevent microbial induced sludge caused by hydrocarbon utilizing microorganisms. Waste from the bugs is highly acidic, eating away at fuel tanks, lines and fuel metering systems in engines. To make matters worse, the addition of biodiesel, also generated by living organisms has compounded the bug issue. Treating all your fuel with Biobor JF will help eliminate these microbial issues while providing additional lubrication to ULSD to reach OEM recommendations. Biobor has been the world standard for treatment of all fuels since 1965.