{"product_id":"crystal-clean-diesel-def-scr-emissions-system-cleaner-350-ml","title":"Rislone Crystal Clean","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"HowTo\",\n  \"name\": \"Rislone Crystal Clean\",\n  \"description\": \"\",\n  \"step\": [\n    {\n      \"@type\": \"HowToStep\",\n      \"name\": \"Check your DEF tank capacity and read the dosage chart on the bottle label.\",\n      \"text\": \"Check your DEF tank capacity and read the dosage chart on the bottle label.\"\n    },\n    {\n      \"@type\": \"HowToStep\",\n      \"name\": \"Pour the measured amount directly into the blue-capped DEF\/AdBlue filler — not t\",\n      \"text\": \"Pour the measured amount directly into the blue-capped DEF\/AdBlue filler — not the fuel tank.\"\n    },\n    {\n      \"@type\": \"HowToStep\",\n      \"name\": \"Use a double dose if visible crystallisation or a fault code is already present.\",\n      \"text\": \"Use a double dose if visible crystallisation or a fault code is already present.\"\n    },\n    {\n      \"@type\": \"HowToStep\",\n      \"name\": \"Top up your AdBlue as normal and run the vehicle to allow full circulation.\",\n      \"text\": \"Top up your AdBlue as normal and run the vehicle to allow full circulation.\"\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this clear existing SCR fault codes like P20EE or P204F?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If the fault code is caused by DEF crystallisation blocking flow or contaminating concentration readings, dissolving the crystals can allow the code to clear once the ECU detects restored DEF quality. Codes arising from physical catalyst damage, a failed NOx sensor, or wiring faults require mechanical repair at an authorised service centre.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How often should I use it to prevent crystal build-up?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Add Crystal Clean every second or third DEF top-up as a preventive measure. If you operate in extreme heat — long highway runs in summer — or in cold North India winters below 3°C, dose at every DEF fill for best protection.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is it safe for my BS6 Tata or Mahindra diesel vehicle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The ash-free, ISO 22241-compatible formula is safe for all BS6 SCR and DPF systems fitted to Tata, Mahindra, Ashok Leyland, Force Motors, and imported diesel vehicles sold in India. It will not void your manufacturer warranty.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will it help my vehicle pass the PUC emission test?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A clean, correctly functioning SCR system reduces NOx emissions efficiently — which is exactly what your BS6 engine is designed to achieve. By keeping DEF flowing and dosing accurately, Crystal Clean helps your SCR system perform as designed, supporting cleaner exhaust and better PUC compliance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is Cash on Delivery available and how fast will it arrive?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — naredi.in offers Cash on Delivery and free delivery across India. Most orders are dispatched within 24 hours and reach metro cities within 3–5 business days.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003cdiv class=\"rislone-hero\"\u003e\n\u003ch2\u003eStop AdBlue Crystals Before They Push Your BS6 Vehicle Into Limp Mode\u003c\/h2\u003e\n\u003cp class=\"hero-subtitle\"\u003eProfessional DEF cleaner additive that dissolves hardened urea deposits and keeps your BS6 SCR system flowing reliably — through scorching Indian summers and freezing North India winters alike.\u003c\/p\u003e\n\u003cul class=\"hero-bullets\"\u003e\n\u003cli\u003eDissolves biuret and cyanuric acid crystal deposits in AdBlue tanks, pumps, lines, and dosing injectors in a single treatment.\u003c\/li\u003e\n\u003cli\u003ePrevents SCR fault codes (P20EE, P204F, P207F) and limp mode — saving ₹25,000–₹1,50,000 in workshop bills.\u003c\/li\u003e\n\u003cli\u003eImproves DEF atomisation quality in extreme Indian summer heat and cold North India winters below 3°C.\u003c\/li\u003e\n\u003cli\u003eAsh-free formula — fully safe for ISO 22241-compliant AdBlue systems and DPF-safe; will not void your manufacturer warranty.\u003c\/li\u003e\n\u003cli\u003eCompatible with all AdBlue brands available at Indian fuel stations and authorised service centres.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eUse When You Notice…\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eSCR or AdBlue warning light on the dashboard:\u003c\/strong\u003e Crystal blockages disrupt DEF flow and trigger sensor errors — this def cleaner additive dissolves the root cause before the ECU escalates to limp mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eVehicle entering limp mode on highways:\u003c\/strong\u003e Restricted DEF delivery forces the ECU to cut power; restoring clean flow removes the trigger without a costly workshop visit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eWhite crusty deposits around the blue DEF filler cap:\u003c\/strong\u003e Visible crystallisation outside signals heavier build-up inside lines and injectors that this liquid treatment can dissolve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eDEF pump sounds strained or consumption is irregular:\u003c\/strong\u003e Partial blockages make the pump work harder and skew concentration readings — a clean system restores accurate dosing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eVehicle returning from a long hot highway run:\u003c\/strong\u003e High ambient temperatures accelerate urea crystallisation in idle SCR lines; dose immediately after heavy-duty use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eDissolves Existing Deposits:\u003c\/strong\u003e Targets biuret and cyanuric acid crystals throughout your DEF system — tank, pump, lines, and dosing injector — in one treatment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003ePrevents Limp Mode:\u003c\/strong\u003e Restoring unobstructed DEF flow removes the trigger for ECU-enforced power reduction, keeping your vehicle road-legal and moving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eAll-Season Performance:\u003c\/strong\u003e Conditions your DEF liquid for reliable atomisation whether you are crossing the Thar Desert in May or driving through a Delhi winter in January.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eAsh-Free and DPF-Safe:\u003c\/strong\u003e Zero metallic ash content means no risk of DPF contamination or SCR catalyst damage — safe for all BS6 after-treatment systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eSaves on Workshop Costs:\u003c\/strong\u003e SCR pump or injector replacement in India runs ₹25,000–₹1,50,000; regular preventive dosing costs a fraction of that.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eThe Technology Inside\u003c\/h2\u003e\n\u003cp\u003eRislone Crystal Clean uses a precisely balanced blend of ash-free, urea-compatible surfactants and chelating agents that penetrate and break apart the crystalline lattice structures formed by biuret and cyanuric acid — the two primary degradation products of urea-based DEF. Unlike water alone, the formula lowers the surface tension inside DEF lines and dosing injectors, allowing dissolved crystal fragments to pass harmlessly through the SCR catalyst without contaminating it. The additive also stabilises the urea concentration of your AdBlue solution, correcting the dilution errors that trigger fault code P20EE on Indian BS6 vehicles. Because the formula contains no sulphated ash, phosphorus, or metallic compounds, it meets the purity requirements of ISO 22241 — the same standard your AdBlue must meet — and poses zero risk to the selective catalytic reduction catalyst or the diesel particulate filter downstream.\u003c\/p\u003e\n\n\u003ch2\u003eDosage \u0026amp; Coverage\u003c\/h2\u003e\n\u003cp\u003eDose at 1 oz (approximately 30 ml) per 10 gallons (38 litres) of DEF — refer to the label dosage chart for your exact tank size. Add the liquid 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; return to the standard preventive dose every second or third DEF top-up thereafter, or at every fill if operating in extreme heat or cold.\u003c\/p\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ch3\u003eSafe to use with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll BS6 (Euro 6) diesel vehicles using ISO 22241-compliant AdBlue or DEF\u003c\/li\u003e\n\u003cli\u003eTrucks, buses, SUVs, and commercial vehicles with SCR after-treatment systems\u003c\/li\u003e\n\u003cli\u003eMahindra TUV300+, Scorpio-N diesel, Tata Prima trucks, Ashok Leyland heavy vehicles, Force Motors diesel vans\u003c\/li\u003e\n\u003cli\u003eAll AdBlue brands sold at Indian fuel stations and authorised service centres\u003c\/li\u003e\n\u003cli\u003eSystems operating on biodiesel blends where SCR is fitted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNot suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDo not add to the diesel fuel tank or engine oil — DEF\/AdBlue tank only\u003c\/li\u003e\n\u003cli\u003eCannot repair physical damage to SCR catalysts, sensors, or pumps\u003c\/li\u003e\n\u003cli\u003eWill not clear fault codes caused by a faulty NOx sensor or wiring issue\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy It Matters in India\u003c\/h3\u003e\n\u003cp\u003eIndian BS6 commercial vehicles — Tata Prima trucks, Ashok Leyland heavy vehicles, and Mahindra SUVs — face uniquely harsh SCR conditions: temperatures above 45°C in Rajasthan and Gujarat accelerate urea crystallisation in parked vehicles, while North India winters in Delhi, Chandigarh, and Amritsar drop below 3°C, causing DEF to thicken and flow poorly. Dusty road conditions clog DEF tank vents, worsening concentration inside the system. SCR component replacement at an authorised workshop can cost ₹25,000–₹1,50,000 — regular treatment with a quality def cleaner additive is cheap, practical insurance that also helps your vehicle pass PUC emission checks by keeping NOx reduction efficient.\u003c\/p\u003e\n\n\u003ch2\u003eHow To Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eCheck your DEF tank capacity and read the dosage chart on the bottle label.\u003c\/li\u003e\n\u003cli\u003ePour the measured amount directly into the blue-capped DEF\/AdBlue filler — not the fuel tank.\u003c\/li\u003e\n\u003cli\u003eUse a double dose if visible crystallisation or a fault code is already present.\u003c\/li\u003e\n\u003cli\u003eTop up your AdBlue as normal and run the vehicle to allow full circulation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"safety-note\"\u003e\u003cstrong\u003eSafety Note:\u003c\/strong\u003e AdBlue is mildly corrosive — avoid contact with eyes and painted surfaces. Keep the DEF filler cap tightly closed after dosing to prevent contamination.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eCan this clear existing SCR fault codes like P20EE or P204F?\u003c\/strong\u003e\n\u003cp\u003eIf the fault code is caused by DEF crystallisation blocking flow or contaminating concentration readings, dissolving the crystals can allow the code to clear once the ECU detects restored DEF quality. Codes arising from physical catalyst damage, a failed NOx sensor, or wiring faults require mechanical repair at an authorised service centre.\u003c\/p\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eHow often should I use it to prevent crystal build-up?\u003c\/strong\u003e\n\u003cp\u003eAdd Crystal Clean every second or third DEF top-up as a preventive measure. If you operate in extreme heat — long highway runs in summer — or in cold North India winters below 3°C, dose at every DEF fill for best protection.\u003c\/p\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eIs it safe for my BS6 Tata or Mahindra diesel vehicle?\u003c\/strong\u003e\n\u003cp\u003eYes. The ash-free, ISO 22241-compatible formula is safe for all BS6 SCR and DPF systems fitted to Tata, Mahindra, Ashok Leyland, Force Motors, and imported diesel vehicles sold in India. It will not void your manufacturer warranty.\u003c\/p\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eWill it help my vehicle pass the PUC emission test?\u003c\/strong\u003e\n\u003cp\u003eA clean, correctly functioning SCR system reduces NOx emissions efficiently — which is exactly what your BS6 engine is designed to achieve. By keeping DEF flowing and dosing accurately, Crystal Clean helps your SCR system perform as designed, supporting cleaner exhaust and better PUC compliance.\u003c\/p\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eIs Cash on Delivery available and how fast will it arrive?\u003c\/strong\u003e\n\u003cp\u003eYes — naredi.in offers Cash on Delivery and free delivery across India. Most orders are dispatched within 24 hours and reach metro cities within 3–5 business days.\u003c\/p\u003e\n\n\u003ch2\u003eComplete Your Kit\u003c\/h2\u003e\n\u003cp\u003eKeep your entire BS6 diesel system clean and performing at its best with these companion Rislone treatments.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRislone Hy-per Diesel Complete Fuel System Treatment\u003c\/strong\u003e — cleans injectors, boosts cetane rating of Indian pump diesel, reduces black smoke, and improves cold starts in North India winters; pairs perfectly with Crystal Clean for total diesel system care.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWarranty \u0026amp; Support in India\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eWarranty:\u003c\/strong\u003e 1-year warranty against manufacturing defects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eCustomer Support:\u003c\/strong\u003e Monday–Saturday, 9 AM–6 PM IST. \u003ca href=\"https:\/\/wa.me\/919311211157\"\u003eWhatsApp \/ Phone: +91 93112 11157\u003c\/a\u003e · \u003ca href=\"mailto:hello@naredi.in\"\u003ehello@naredi.in\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eReturns:\u003c\/strong\u003e 14-day return and exchange policy, COD returns accepted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color:#ffa400\"\u003eDelivery:\u003c\/strong\u003e Free delivery across India, Cash on Delivery available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"margin:40px 0 24px;padding:24px 28px;background:#fff8e1;border-radius:10px;border-left:4px solid #ffa400;\"\u003e\n\u003ch3 style=\"font-size:16px;font-weight:800;color:#1a1a1a;margin:0 0 4px;font-family:sans-serif;\"\u003eComplete Your Kit\u003c\/h3\u003e\n\u003cp style=\"font-size:12px;color:#777;margin:0 0 14px;font-family:sans-serif;\"\u003eEverything you need for complete vehicle care\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:0;list-style:none;\"\u003e\n\u003cli style=\"margin:8px 0;font-family:sans-serif;font-size:14px;color:#333;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eKeep your battery healthy:\u003c\/span\u003e \u003ca href=\"\/collections\/ctek-car-and-bike-battery-chargers\" title=\"CTEK Battery Chargers\" style=\"color:#1a6fbd;text-decoration:none;font-weight:700;\"\u003eCTEK Battery Chargers →\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:8px 0;font-family:sans-serif;font-size:14px;color:#333;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eCheck battery health:\u003c\/span\u003e \u003ca href=\"\/collections\/vehicle-battery-tester\" title=\"Battery Testers\" style=\"color:#1a6fbd;text-decoration:none;font-weight:700;\"\u003eBattery Testers →\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:8px 0;font-family:sans-serif;font-size:14px;color:#333;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eFull vehicle diagnostics:\u003c\/span\u003e \u003ca href=\"\/collections\/obd-tools\" title=\"OBD Diagnostic Tools\" style=\"color:#1a6fbd;text-decoration:none;font-weight:700;\"\u003eOBD Diagnostic Tools →\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:8px 0;font-family:sans-serif;font-size:14px;color:#333;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eEmergency backup:\u003c\/span\u003e \u003ca href=\"\/collections\/jump-starter\" title=\"Jump Starters\" style=\"color:#1a6fbd;text-decoration:none;font-weight:700;\"\u003eJump Starters →\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin:48px 0 24px;padding:24px 28px;background:#f0f7ff;border-radius:10px;border-left:4px solid #1a6fbd;\"\u003e\n\u003ch3 style=\"font-size:16px;font-weight:800;color:#1a1a1a;margin:0 0 12px;font-family:sans-serif;\"\u003eFurther Reading\u003c\/h3\u003e\n\u003cp style=\"font-size:13px;color:#555;margin:0 0 12px;font-family:sans-serif;\"\u003eOur guides will help you get the most out of this product.\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:18px;font-family:sans-serif;\"\u003e\n\u003cli style=\"margin:8px 0;\"\u003e\u003ca href=\"https:\/\/naredi.in\/blogs\/news\/oil-leak-repair-fluid-rislone-one\" title=\"Oil Leak Repair Fluid: How Rislone One Seal Stops Engine, Gearbox and Steering Leaks Before They Cost You ₹50,000\" style=\"color:#1a6fbd;text-decoration:none;font-size:14px;font-weight:600;\"\u003eOil Leak Repair Fluid: How Rislone One Seal Stops Engine, Gearbox and Steering Leaks Before They Cost You ₹50,000\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:8px 0;\"\u003e\u003ca href=\"https:\/\/naredi.in\/blogs\/news\/12v-battery-charging-time-ctek-cig\" title=\"12V Battery Charging Time: The Honest Answer Every Indian Car Owner Needs\" style=\"color:#1a6fbd;text-decoration:none;font-size:14px;font-weight:600;\"\u003e12V Battery Charging Time: The Honest Answer Every Indian Car Owner Needs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:8px 0;\"\u003e\u003ca href=\"https:\/\/naredi.in\/blogs\/news\/12v-battery-charging-time-india-guide\" title=\"12V Battery Charging Time: How Long It Really Takes — and How to Know When It's Actually Done\" style=\"color:#1a6fbd;text-decoration:none;font-size:14px;font-weight:600;\"\u003e12V Battery Charging Time: How Long It Really Takes — and How to Know When It's Actually Done\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Rislone","offers":[{"title":"Default Title","offer_id":51568663429437,"sku":"44784","price":2400.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/2062\/1117\/files\/RisloneCrystalCleanDieselDEF_SCREmissionsSystemCleaner360ml_1.png?v=1779883933","url":"https:\/\/naredi.in\/products\/crystal-clean-diesel-def-scr-emissions-system-cleaner-350-ml","provider":"naredi.in","version":"1.0","type":"link"}