{"product_id":"rislone-cat-complete-fuel-exhaust-emissions-system-cleaner-1-pack-concentrated-o2-sensor-safe","title":"Rislone Cat Complete Fuel, Exhaust \u0026 Emissions System Cleaner 1-Pack — Concentrated, O2‑Sensor Safe","description":"\u003cp\u003e\u003cstrong\u003eRislone 4720 Cat Complete is a concentrated cleaner formulated to dissolve soot, carbon, oily residues and inorganic deposits across fuel, combustion, turbo, EGR, catalytic converter and oxygen sensor systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eVehicles accumulate carbon and soot from normal combustion, poor fuel quality, short trips and cold-weather operation. Rislone 4720 Cat Complete combines detergents and heavy-duty solvents with active agents that chemically react with combustion byproducts to lift and flush deposits, helping parts return closer to their intended performance. It’s designed for regular preventive use and targeted clean-ups on gasoline, ethanol and hybrid engines, and is compatible with common modern components like oxygen sensors and catalytic converters.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this cleaner affect my engine’s power and fuel economy?\u003c\/h3\u003e\n\u003cp\u003eRemoving carbon, soot and oily deposits restores airflow and fuel spray patterns, which can recover lost power and improve fuel efficiency. Results depend on the extent of buildup, frequency of use and vehicle condition, but routine treatments help sustain factory-like operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores injector spray and combustion chamber cleanliness\u003c\/li\u003e\n  \u003cli\u003eReduces exhaust restrictions from coked EGR and catalytic surfaces\u003c\/li\u003e\n  \u003cli\u003eHelps maintain throttle response and mileage when used every ~5,000 miles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs Rislone 4720 safe for modern emission controls and sensors?\u003c\/h3\u003e\n\u003cp\u003eThe formula is engineered to be safe for oxygen sensors and catalytic converters and meets EPA compliance performance criteria. That means it can be used on vehicles with emission-control devices without voiding manufacturer warranties due to the cleaner itself.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpecifically formulated to protect oxygen sensors\u003c\/li\u003e\n  \u003cli\u003eSafe for catalytic converters when used as instructed\u003c\/li\u003e\n  \u003cli\u003eWorks across fuel-injected, direct-injected, turbocharged and carbureted systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use this product and what maintenance schedule is recommended?\u003c\/h3\u003e\n\u003cp\u003ePour the recommended dose into the fuel tank at fill-up or follow label instructions for targeted cleaning cycles. Regular application every 5,000 miles is suggested to prevent heavy buildup and reduce the chance of check-engine lamp recurrence tied to contamination.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdd to fuel tank during a fill-up for even distribution\u003c\/li\u003e\n  \u003cli\u003eUse periodically as a preventive tune-up or when drivability issues appear\u003c\/li\u003e\n  \u003cli\u003eCompatible with gasoline, ethanol blends and hybrid powertrains\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat problems can this product help avoid or reduce?\u003c\/h3\u003e\n\u003cp\u003eBy addressing deposits throughout the fuel, combustion and exhaust pathways, the cleaner helps combat common symptoms caused by buildup. It’s not a guaranteed cure for mechanical failure but can lower the risk of more costly repairs by maintaining system cleanliness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCan reduce rough idling, hesitation and hard starts related to contamination\u003c\/li\u003e\n  \u003cli\u003eHelps prevent increased emissions and associated drivability issues\u003c\/li\u003e\n  \u003cli\u003eMay reduce premature wear from persistent deposits when used regularly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Rislone 4720 Cat Complete is aimed at drivers who want preventive maintenance and restoration of fuel, combustion and exhaust systems—DIYers, fleet managers, and anyone with gasoline, ethanol-blend or hybrid vehicles that show signs of deposit-related performance loss. It’s appropriate for owners of older cars with buildup and modern vehicles with emission controls who want to avoid costly component replacements by keeping systems clean between scheduled services.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFeatures include increased power and mileage, prevention of expensive repair needs, vehicle-warranty-safe formulation, broad engine compatibility, and the backing of a brand with decades in automotive care.\u003c\/em\u003e\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: Can I use Rislone 4720 in turbocharged engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s compatible with turbocharged and GTDI engines to clean injectors, turbo and exhaust components without harming sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I add this cleaner to my tank?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use approximately every 5,000 miles for preventive maintenance or when you notice drivability or emission concerns.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rislone","offers":[{"title":"Default Title","offer_id":67588808769721,"sku":"B08SPVQJ6J","price":77.03,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/rislone-4720-front-packaging.jpg?v=1790525375","url":"https:\/\/redleafauto.ca\/products\/rislone-cat-complete-fuel-exhaust-emissions-system-cleaner-1-pack-concentrated-o2-sensor-safe","provider":"Redleaf Auto","version":"1.0","type":"link"}