Rislone DEF Clean AdBlue System Cleaner

Use When You Notice…

• SCR or DEF warning light on the dashboard: Crystallisation blocks DEF flow and triggers fault codes — this AdBlue system cleaner dissolves the blockage before it becomes a costly workshop visit.
• Vehicle entering limp mode unexpectedly: A restricted DEF system forces the ECU into limp mode; restoring clean flow can clear the condition without an expensive dealer repair.
• White crusty deposits around the blue DEF filler cap: Visible urea residue signals heavy crystallisation inside lines and the pump — act before the pump seizes.
• DEF pump sounding strained or consumption irregular: Partial blockages make the pump overwork and skew concentration readings, accelerating wear and wasting your DEF.
• After long summer highway runs: Sustained high temperatures accelerate crystal formation in idle DEF lines — dose preventively after every long trip.

Key Benefits

• Crystal Dissolution: Breaks down biuret and cyanuric acid deposits that ordinary AdBlue cleaning cannot shift, restoring full flow in tanks, pumps and injectors.
• Limp Mode Prevention: Keeps DEF concentration and flow within ECU tolerance, preventing the costly limp mode events common on Indian highways.
• All-Season Performance: Conditions your DEF additive for reliable atomisation in 45°C Rajasthan heat and near-freezing Delhi winter mornings.
• Catalyst-Safe Formula: Ash-free and ISO 22241-compliant — introduces zero contaminants that could damage your SCR catalyst or DPF.
• Cost Protection: At a fraction of SCR component prices, regular treatment is the most affordable way to protect your liquid DEF system long-term.

The Technology Inside

Rislone DEF Clean uses ash-free urea-compatible chemistry to penetrate and break apart urea crystal structures — specifically the biuret and cyanuric acid polymers that form when DEF evaporates or overheats. Unlike generic DEF additives, the formula conditions the AdBlue solution itself, restoring correct urea concentration so your SCR dosing control unit reads accurate values. It also reduces surface tension at the dosing injector tip, improving atomisation quality across the wide temperature swings common in Indian operating conditions. No phosphorus, no sulphur, no metallic compounds — nothing that would harm your SCR catalyst or trigger a DPF-safe compliance issue.

Dosage & Coverage

Add approximately 30 ml per 38 litres of DEF directly into the blue-capped AdBlue filler only — never into the diesel tank. Use a double dose when heavy crystallisation is already present or when a warning light is active. For preventive AdBlue cleaning, treat every second or third DEF top-up, or every fill if operating in extreme heat or North India winter conditions.

Compatibility

Safe to use with

• All BS-VI (Euro 6) diesel vehicles using ISO 22241-compliant AdBlue or DEF
• Tata Prima, Tata Ultra, Ashok Leyland heavy trucks and buses with SCR after-treatment
• Mahindra TUV300 Plus, Scorpio-N diesel, XUV700 diesel and other BS-VI SUVs
• Force Motors Traveller, commercial vans and school buses with SCR systems
• All passenger diesel cars, SUVs and light commercial vehicles with AdBlue tanks

Not suitable for

• Do not add to the diesel fuel tank or engine oil — DEF/AdBlue tank only
• Cannot repair physical SCR catalyst damage, failed NOx sensors or broken DEF pumps
• Not a substitute for replacing contaminated or degraded AdBlue solution

Why It Matters in India

Indian BS-VI commercial vehicles clock long, hot highway runs between cities like Delhi, Mumbai and Chennai — exactly the conditions that cause DEF crystallisation to accelerate inside dosing lines and pump housings. When temperatures drop below 3°C in Chandigarh or Amritsar in January, partially blocked DEF systems struggle with cold starts and trigger fault codes before the engine is even warm. SCR component replacement on Tata or Ashok Leyland trucks can easily cost ₹50,000–₹1,50,000 at authorised service centres. Treating your DEF system regularly with a quality def additive cleaner costs a fraction of that and keeps your vehicle PUC-compliant by ensuring full SCR NOx reduction efficiency.

How To Use

1. Check your DEF tank capacity using the dosage chart printed on the bottle.
2. Pour the measured amount directly into the blue-capped AdBlue filler only.
3. Use a double dose if white crystal deposits or warning lights are already present.
4. Top up DEF as normal and drive — the formula works during regular operation.

Safety Note: AdBlue is corrosive to skin and eyes — wear gloves when handling. Never add this product to the diesel fuel tank.

Frequently Asked Questions

Can this clear existing SCR fault codes?

If the fault code is caused by DEF crystallisation blocking flow or distorting concentration readings, dissolving the crystals can allow the ECU to clear the code after a drive cycle. Fault codes caused by physical catalyst damage, failed NOx sensors or a broken DEF pump require mechanical repair at a service centre.

How often should I treat my DEF system?

As a preventive measure, add Rislone DEF Clean every second or third DEF top-up. If your vehicle operates in extreme Indian summer heat or North India winter cold, treat at every fill to maintain reliable AdBlue cleaning performance year-round.

Is this safe for BS-VI vehicles and their DPF?

Yes — the ash-free, ISO 22241-compliant formula introduces no phosphorus, sulphur or metallic compounds. It is fully DPF-safe and will not contaminate your SCR catalyst or void BS-VI after-treatment warranties.

Will this help my vehicle pass a PUC emission test?

A fully functioning SCR system reduces NOx emissions to BS-VI limits. By keeping your DEF system free of blockages, this product helps maintain peak SCR efficiency, which directly supports lower NOx output and cleaner exhaust at the PUC test point.

Is Cash on Delivery available and how fast is delivery?

Yes — naredi.in offers Cash on Delivery (COD) across India with free shipping. Most orders are delivered within 3–7 business days depending on your location.

Complete Your Kit

Pair your AdBlue system care with these complementary Rislone treatments for a fully protected BS-VI diesel drivetrain.

• Rislone Hy-per Diesel Complete Fuel System Treatment — cleans injectors, boosts cetane, reduces black smoke and helps with cold starts in North India winters; ideal to run alongside your DEF system treatment for whole-system diesel care.

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