Rislone Diesel Exhaust Fluid (DEF) Treatment Super Concentrate — 1-Pack, Prevents Crystalline Deposits

Rislone 4782 Diesel Exhaust Fluid (DEF) Treatment Super Concentrate is a potent additive designed to prevent white crystalline deposits in SCR/DEF systems when mixed at recommended dosages.

SCR systems rely on clean Diesel Exhaust Fluid (DEF/AdBlue) to reduce emissions. Over time, urea-based fluids can form hard, white crystallized deposits that clog tanks, pumps, heaters, lines, injectors and mixers — leading to reduced performance and costly repairs. Rislone 4782 is formulated as a concentrated, preventative treatment to be added to DEF storage containers or tanks at specified dilution rates, helping maintain system cleanliness and component function without voiding vehicle warranties.

How do I use Rislone 4782 to treat my DEF supply?

Measure the concentrate and add it directly to the DEF drum, tote, pail, cube or tank before dispensing into vehicle DEF reservoirs. Follow the dosage chart for accurate dilution to ensure efficacy and avoid overdosing.

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

What components does this treatment help protect?

Rislone 4782 targets the common deposit locations inside SCR/DEF systems to reduce blockages and wear. By keeping fluid pathways free of crystallized buildup, it helps preserve mechanical and electrical parts associated with DEF delivery.

• DEF tank interior and seals
• Pumps, heaters and senders
• Distribution lines, injectors and mixers
• Storage pails, drums and IBC/tote surfaces

Will this product work with my vehicle and affect warranties?

Rislone 4782 is compatible with all UREA-based AdBlue/DEF formulas and is intended as a preventive additive. It is designed to be safe for new vehicles and should not void manufacturers’ DEF-related warranties when used as directed.

• Compatible with standard DEF/AdBlue fluids
• Formulated for preventive maintenance, not a repair-only remedy
• Follow manufacturer guidelines and product directions to maintain warranty compliance

How often should I add this concentrate?

Use the concentrate at every DEF refilling or add to storage containers as part of regular maintenance to minimize the chance of crystallization. Consistent, routine treatment is more effective than intermittent use when preventing deposits.

• Add every time you refill a vehicle DEF tank
• Treat storage drums and pails when refilling or before long-term storage
• Particularly important for vehicles operating at low speeds, light loads, short runs or frequent stops

Who is this product for? Rislone 4782 is suited for fleet managers, diesel equipment owners, agricultural operators, contractors and any diesel vehicle user who stores or dispenses DEF and wants to reduce the risk of labor-intensive and expensive SCR system repairs. It’s especially useful where vehicles operate in stop-and-go conditions, low-load cycles or short-haul environments that promote DEF crystallization. Use it proactively in service garages, maintenance shops, refilling stations and on-site DEF storage to help maintain reliable exhaust treatment system operation.