. Biobor JF prevents microbial growth in diesel fuel for better engine performance.Specifically recommended by diesel engine manufacturers operation manuals, Biobor JF kills and prevents microbial growth (algae, bacteria and fungi) to prevent clogged fuel filters, sludge accumulation and the corrosion issues that follow. Lubricity is also added to ULSD to protect injectors and fuel pumps. Also widely used by major airlines, military aviation and refineries to control and eliminate bio-contamination.Key Features Kills and prevents bacteria and slime Prevents plugged fuel filters Prevents corrosion Adds lubricity which protects injectors and pumps Recommended by major diesel engine manufacturers Fuel and water soluble formula works throughout fuel tank Shock dosage eliminates existing contamination 1 ounce treats 80 gallons