Rislone DEF Treatment Super Concentrate — 1-Pack, Prevents Urea Deposits & Protects Pumps

Rislone 4782 Diesel Exhaust Fluid (DEF) Treatment Super Concentrate is an additive designed to prevent white crystalline deposits in Selective Catalytic Reduction (SCR) systems by conditioning DEF/AdBlue and protecting pumps, lines, and components.

SCR systems rely on DEF/AdBlue to reduce emissions, but repeated heating, cooling and intermittent use can cause urea-based fluids to form hard white deposits that clog tanks, pumps and injectors. Rislone 4782 is a concentrated formula you add directly to DEF drums, totes, pails or tanks to reduce deposit formation and help maintain proper DEF flow and component operation. Use the measured dosage instructions to treat containers from small pails to large IBCs.

How does this concentrate help keep my DEF system working?

The additive modifies the behavior of urea-based DEF to discourage the growth of solid deposits that can accumulate on sensors, heaters and pipework. It does not replace standard DEF but is used as a supplemental conditioner during refills.

• Limits white crystalline buildup inside tanks and lines
• Helps maintain pump and injector performance by reducing obstructions
• Formulated to blend with all UREA AdBlue and DEF products

How do I dose Rislone 4782 for different container sizes?

Follow the concentration chart to ensure the correct treatment level for each container volume; overdosing is unnecessary and underdosing reduces effectiveness. Pour the measured amount directly into the DEF container before or during refilling.

• 0.6 ounce per 1 gallon of DEF
• 1.5 ounces per 2.5-gallon cube
• 3 ounces per 5-gallon pail
• 1 bottle treats a 55-gallon drum; six bottles treat a 275–330 gallon IBC/tote

Will this product work with my vehicle and warranty?

Rislone 4782 is formulated to be compatible with all standard UREA AdBlue and DEF fluids and is intended as a preventative maintenance additive. It is designed not to interfere with manufacturer-specified DEF chemistry when used according to directions.

• Compatible with vehicles and equipment using DEF/AdBlue
• Intended as a preventive treatment, not a repair for existing severe blockages
• Use per label instructions to avoid altering DEF composition beyond recommended limits

How often should I use the DEF treatment?

Apply the concentrate each time you refill the DEF container for the most consistent protection, especially for equipment that runs at low load, idle or short-run cycles. Regular application helps lower the chance of deposit formation over time.

• Recommended at every DEF refill for continuous protection
• Particularly useful for vehicles with frequent stops, low-speed duty, or short trips
• Helps protect heaters, senders, pumps and mixing components

Who is this for: Rislone 4782 DEF Treatment Super Concentrate is intended for fleet managers, diesel operators, mechanics and owners of trucks, buses, agricultural or construction equipment that use SCR emissions systems and DEF/AdBlue. It’s especially helpful for machines that spend extended periods at low speed, run short cycles, or are refilled from drums, pails or IBC totes—any situation where DEF is prone to temperature variations and crystallization. Use this product as part of a regular DEF maintenance routine to reduce the likelihood of costly SCR repairs and to help maintain consistent DEF delivery and component function.