{"product_id":"rislone-def-crystal-clean-diesel-def-scr-emissions-system-cleaner-11-8-oz","title":"Rislone DEF Crystal Clean Diesel DEF \u0026 SCR Emissions System Cleaner – 11.8 oz","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eRislone DEF Crystal Clean is a proprietary DEF \/ AdBlue compatible cleaner designed to help keep the SCR (Selective Catalytic Reduction) emissions system clear of white crystallization deposits. By targeting the DEF tank, lines, pump, heater, sender, injector, decomposition tube, reactor, and mixer, this formula aims to support smoother SCR operation. When crystallization builds up, some vehicles may experience higher fuel use or reduced engine responsiveness. Regular use can help maintain SCR efficiency and avoid system-related disruptions.\u003c\/p\u003e\u003ch3\u003eWhy this matters\u003c\/h3\u003e\u003cp\u003eCrystallization deposits can form when diesel exhaust fluid is stored or circulated, especially in vehicles that idle frequently, drive at low speeds, or endure short trips. Deposits may interfere with flow and pressure, contributing to inefficiencies in the SCR process. While not a guarantee, maintaining a clean SCR pathway is associated with steady operating behavior and consistent emissions control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDesigned to be safe for vehicles with DOC catalytic converters, DPF filters, SCR devices, ASC ammonia slip catalysts, and DEF\/AdBlue systems.\u003c\/li\u003e\n\u003cli\u003eCompatible with a wide range of DEF fluids and formulations, including common AdBlue equivalents.\u003c\/li\u003e\n\u003cli\u003eDO NOT ADD TO THE DIESEL FUEL TANK; use only in the DEF\/AdBlue reservoir (blue cap).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cp\u003eFor best results, follow the tank sizing guidance. Pour DEF Crystal Clean into a mostly full DEF tank and then fill with DEF fluid as needed. If the vehicle light remains on after driving, a second application may be required or a professional check may be warranted.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLight trucks or mid-size to large SUVs (5–9 gallon DEF tank): use the full bottle.\u003c\/li\u003e\n\u003cli\u003eCars or small SUVs (3–5 gallon DEF tank): use approximately half a bottle.\u003c\/li\u003e\n\u003cli\u003eMedium and heavy-duty diesel trucks (10–20 gallon DEF tank): use two bottles.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRegular use every 5,000 miles is suggested to help maintain cleanliness and support SCR efficiency over time.\u003c\/p\u003e\u003ch3\u003eWhat you get and compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e11.8 oz bottle of DEF Crystal Clean\u003c\/li\u003e\n\u003cli\u003eWorks with all approved DEF \/ AdBlue fluids\u003c\/li\u003e\n\u003cli\u003eSafe for modern emissions components and does not void new vehicle warranties\u003c\/li\u003e\n\u003cli\u003eNot intended for addition to diesel fuel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReal-world use cases\u003c\/h3\u003e\u003cp\u003eUrban commutes, frequent stops, and slow-speed driving are common patterns where crystallization can occur. In these scenarios, regular DEF Crystal Clean use may help sustain smoother DEF flow and consistent SCR performance, supporting lifecycle maintenance of the emissions system.\u003c\/p\u003e\u003cp\u003eAlways follow the vehicle manufacturer’s guidelines and consider professional advice for ongoing SCR concerns. This product is a maintenance additive and complements routine service, rather than replacing diagnosis or repairs when needed.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is DEF Crystal Clean safe for SCR systems and DEF hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s designed to be compatible with many common DEF\/AdBlue systems and components, including DOC, DPF, SCR, and ASC catalysts, as well as DEF tanks; it does not alter diesel fuel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I use DEF Crystal Clean?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use every 5,000 miles as part of routine SCR maintenance; if the indicator light remains after driving 250 miles, a second dose or professional check may be needed.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rislone","offers":[{"title":"Default Title","offer_id":47355160002754,"sku":"B0CRSY78LR","price":64.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/3516\/7426\/files\/rislone-def-crystal-clean-bottle-front.jpg?v=1775349402","url":"https:\/\/perlastore.ca\/products\/rislone-def-crystal-clean-diesel-def-scr-emissions-system-cleaner-11-8-oz","provider":"Perla Store | The Ultimate A to Z Marketplace for Every Need in Canada","version":"1.0","type":"link"}