Rislone DEF Treatment AdBlue System Additive

Use When You Notice…

• SCR or DEF warning light on the dashboard — crystallisation blocks DEF flow and triggers fault codes; this cleaner dissolves those deposits before limp mode sets in.
• Vehicle entering limp mode on the highway — a classic sign of DEF system restriction caused by urea crystal build-up in the pump or injector.
• White crusty residue around the blue DEF filler cap — visible crystallisation outside means heavier deposits are forming inside the lines and tank.
• Irregular or unusually high DEF consumption — a partially blocked injector forces incorrect dosing; treatment restores proper metering.
• DEF pump sounding strained or noisy — deposit restriction increases pump load; clearing crystals reduces wear and restores quiet operation.

Key Benefits

• Crystal Dissolution: Breaks down biuret and cyanuric acid deposits inside the tank, pump, and dosing injector — restoring full DEF flow without dismantling the system.
• Limp Mode Prevention: Clears blockages that trigger SCR fault codes, keeping your commercial or passenger diesel vehicle out of limp mode on busy Indian highways.
• All-Season Atomisation: Conditions the AdBlue solution so it atomises correctly whether your vehicle is idling in Chandigarh's January frost or hauling on a Nagpur expressway in May.
• SCR Catalyst Protection: Ash-free additive meaning zero harmful residue reaches the SCR catalyst — preserving its NOx conversion efficiency and helping your vehicle pass PUC emission checks.
• Cost Saving: SCR component replacement in India costs ₹25,000–₹1,50,000; regular DEF treatment at a fraction of that price is the sensible insurance.

The Technology Inside

Rislone DEF Treatment contains a precision-engineered blend of ash-free, urea-compatible surfactants and dispersants that penetrate and break apart urea crystal structures — specifically the biuret and cyanuric acid polymers that form when AdBlue degrades under heat or contamination. Unlike generic cleaners, this formula conditions the DEF concentration back toward the correct 32.5% urea ratio recognised by your vehicle's NOx sensor, preventing false concentration fault codes. It also coats internal SCR circuit surfaces with a thin protective layer that inhibits future crystal nucleation. Because it introduces no sulphated ash, phosphorus, or metallic compounds, it is completely safe for def in diesel after-treatment systems using selective catalytic reduction technology.

Dosage & Coverage

Dose at approximately 30 ml per 38 litres of AdBlue — refer to the dosage chart printed on the bottle for your exact tank size. Add the measured amount directly into the blue-capped DEF/AdBlue filler only; never into the diesel fuel tank or engine oil. Use a double dose when heavy crystallisation is already present, then return to the standard preventive dose every second or third DEF top-up, or every fill if operating in extreme heat or cold.

Compatibility

Safe to use with

• All BS-VI (Euro 6) diesel vehicles using ISO 22241-compliant AdBlue or DEF
• Trucks, buses, and heavy commercial vehicles with SCR after-treatment — including Tata Prima, Ashok Leyland, and Force Motors fleets
• Passenger SUVs and MUVs with AdBlue systems — including Mahindra Scorpio-N diesel, XUV700 diesel, and similar BS6 platforms
• All OEM SCR dosing systems: Bosch, Denoxtronic, and equivalent units

Not suitable for

• Do not add to the diesel fuel tank — DEF/AdBlue tank only
• Cannot repair physically cracked SCR catalyst substrates or failed NOx sensors
• Will not clear fault codes caused by sensor wiring faults or ECU issues

Why It Matters in India

Indian BS-VI commercial vehicles covering long highway distances — whether a Tata Prima on the Delhi–Mumbai expressway or an Ashok Leyland fleet truck crossing Rajasthan — face intense thermal cycling that accelerates AdBlue crystallisation. Dusty storage conditions at roadside dhabas and fuel stations further contaminate DEF tanks. Northern states like Punjab, Haryana, and UP see sub-zero nights in January that can partially freeze and then re-crystallise the AdBlue solution. Regular use of your DEF treatment additive is the single lowest-cost intervention to avoid an unplanned visit to an authorised service centre with a five-figure repair bill.

How To Use

1. Check your DEF tank capacity and refer to the dosage chart on the bottle label.
2. Open the blue-capped AdBlue filler and pour in the correct measured amount of treatment.
3. Top up the DEF/AdBlue tank to the normal level with fresh ISO 22241-compliant AdBlue.
4. Start the engine and allow the SCR system to run for 15–20 minutes to circulate the treatment.

Safety Note: AdBlue is corrosive to bare metal surfaces — wipe any spills immediately. Never add this product to the diesel fuel tank or engine oil; it is formulated exclusively for the DEF/AdBlue circuit.

Frequently Asked Questions

Can this clear existing SCR fault codes on my vehicle?

If the fault code is caused by DEF crystallisation blocking flow or affecting urea concentration readings, dissolving the crystals can allow the code to clear after a few drive cycles. Fault codes resulting from physical catalyst damage, failed NOx sensors, or ECU faults require mechanical diagnosis and repair.

How often should I use this AdBlue additive to prevent crystallisation?

As a preventive measure, add one dose every second or third DEF top-up under normal conditions. If your vehicle operates in extreme heat above 40°C or in sub-5°C North India winter conditions, dose with every AdBlue fill for continuous protection.

Is it safe for BS-VI diesel vehicles and DPF-equipped engines?

Yes — the ash-free formula introduces no sulphated ash, phosphorus, or metallic compounds, so it is fully DPF-safe and compatible with all BS-VI SCR systems. It meets the requirements of ISO 22241 and will not contaminate or degrade your AdBlue solution.

Can I use this in Tata, Mahindra, or Ashok Leyland commercial vehicles?

Absolutely. The treatment is compatible with any vehicle using a standard ISO 22241-compliant DEF/AdBlue system, including Tata Prima trucks, Ashok Leyland heavy vehicles, Mahindra TUV300+ and all newer BS-VI SUVs and MUVs. Always confirm your vehicle has an SCR/AdBlue system before purchasing.

Is Cash on Delivery available and how fast will it be delivered?

Yes, Cash on Delivery is available across India and delivery is free nationwide. Most orders reach metro cities in 2–4 working days; remote locations may take up to 7 working days.

Complete Your Kit

Pair your DEF treatment with these Rislone products for complete diesel system care.

• Rislone Hy-per Diesel Complete Fuel System Treatment — cleans fuel injectors, boosts cetane rating of Indian pump diesel, reduces black smoke, and improves cold starts in North India winters — the ideal companion to your AdBlue maintenance routine.

Warranty & Support in India

• Warranty: 1-year warranty against manufacturing defects
• Customer Support: Monday–Saturday, 9 AM–6 PM IST. WhatsApp / Phone: +91 93112 11157 · hello@naredi.in
• Returns: 14-day return and exchange policy, COD returns accepted
• Delivery: Free delivery across India, Cash on Delivery available