Duda Energy Hammonds Biobor JF Microbicide 16 oz — Diesel Fuel Treatment, Kills Sludge & Slime, Treats 1,280 gal

Duda Energy’s 16 oz Hammonds Biobor JF is a concentrated microbicide designed to eliminate fuel-borne bacteria and fungi and to restore fuel cleanliness and lubricity in diesel, kerosene, biodiesel and heating oil.

This concentrated treatment works at a 1:80 ratio to control microbial contamination that causes slime, sludge and clogged filters in on-road, off-road and storage fuel systems. Formulated to meet ASTM and military specifications and certified by the U.S. Coast Guard, it is suitable for fuel tanks, bulk storage, and vessels where fuel stability and tank integrity matter. The 16 oz bottle treats up to 1,280 gallons, providing a targeted, economical solution for operators, fleet managers, mariners and homeowners who need to mitigate microbial issues without replacing fuel.

How does Hammonds Biobor JF stop sludge and slime in stored fuel?

The microbicide targets the microorganisms that create biofilms and particulate sludge on tank bottoms and filters. By treating contaminated fuel, it reduces organic growth that leads to filter fouling and sediment accumulation.

• Directly kills bacteria and fungi that form fuel slime and sludge
• Breaks up existing deposits to aid filtration and removal
• Helps maintain cleaner tank bottoms and fuel lines after treatment

What fuels and systems are compatible with this product?

Hammonds Biobor JF is formulated for a broad range of petroleum and blended fuels including ULSD, biodiesel blends, kerosene and home heating oil. It is safe for use in storage tanks, diesel engines, generators, marine tanks and seasonal storage where microbial growth is a concern.

• Compatible with diesel, biodiesel blends (follow blend-specific guidance)
• Approved for kerosene and heating oil use
• Suitable for bulk storage tanks, vehicles, and marine applications

How much product do I need and how is it applied?

This concentrate is dosed at a 1:80 treatment level — one part product treats 80 parts fuel. A 16 oz bottle treats up to 1,280 gallons of fuel, making it economical for both small tanks and larger storage volumes. Apply directly into the fuel tank and circulate if possible for best contact.

• Dosage: 1:80 (16 oz treats up to 1,280 gallons)
• Application: pour into tank; run engine or circulate to distribute
• Follow safety and disposal recommendations on the label

Is Hammonds Biobor JF certified and does it affect engine components?

The formulation exceeds ASTM standards, meets MI-S-53021A, is EPA approved and U.S. Coast Guard certified for its intended uses. It is designed to prevent microbial corrosion and restore lubricity lost in low-sulfur fuels without harming typical fuel-system materials when used as directed.

• Exceeds ASTM benchmarks for fuel treatment
• Meets MI-S-53021A military specification
• EPA approved and U.S. Coast Guard certified for marine applications

Who is this for? This treatment is for fleet managers, boat owners, rural homeowners with fuel oil tanks, emergency-generator operators and anyone storing diesel or blended fuels who needs an effective, certified microbicide to prevent and remediate microbial contamination. It is especially useful for seasonal storage, long-term tank holdings and fuel systems that have experienced filter clogging or corrosion concerns. Always follow label instructions and safety guidance during handling and application.