NüDEF Diesel Exhaust Fluid Anti‑Crystal Treatment
NüDEF is a high‑performance DEF additive that prevents and dissolves urea crystal buildup to keep your diesel emissions system running smoothly. It protects pumps, injectors, sensors, and DEF lines while improving cold‑weather reliability and maintaining DEF quality during storage. Safe for all DEF/AdBlue systems used in trucks, heavy equipment, and RVs. NüDEF delivers complete DEF system maintenance in every dose—helping keep warning lights off, performance high, and repair bills low.
NüDEF Products
8oz
NüDEF Original Formula
Our original DEF & SCR system additive & treatment formula. Single 8oz bottle of NüDEF can treat up to 25 gallons of DEF.
Bulk Options
16oz
NüDEF Original Formula
Commercial size offering of our original formula. Single 16oz bottle of NüDEF can treat up to 50 gallons of DEF.
Bulk Options
16oz
NüDEF Extreme Weather Formula
Extreme weather formula for DEF protection in extreme hot & cold regions. A bottle of NüDEF treats up to 25 gallons of DEF.
Bulk Options
1gal
NüDEF Bulk Use Formula
Bulk use formula for complete DEF protection & stability in totes. Gallon of NüDEF can treat up to 330 gallons of DEF.
Bulk Options
Key Benefits
• Prevents DEF Crystallization: Stops crystal deposits from forming in the tank, lines, pump, and injector—helping avoid expensive repairs.
• Clears Existing Blockages: Breaks down built‑up urea crystals to restore proper DEF flow and system performance.
• Improves Cold‑Weather Reliability: Lowers the freezing point of DEF to keep it flowing in harsh winter temperatures.
• Protects & Lubricates System Components: Reduces wear on pumps, injectors, and sensors for smoother, more efficient operation.
• Stabilizes Stored DEF: Ideal for partially used jugs or long‑term storage tanks to prevent degradation and crystallization.
• Compatible With All DEF/AdBlue Systems: Safe for cars, trucks, semis, RVs, and heavy equipment.
