{"product_id":"design-engineering-radiator-relief-cooling-system-flush-16-oz-cleans-rust-scale-protects-metals","title":"Design Engineering Radiator Relief Cooling System Flush 16 oz - Cleans Rust \u0026 Scale, Protects Metals","description":"\u003cstrong\u003eDesign Engineering Radiator Relief Cooling System Flush is a 16 oz professional-grade treatment that dissolves rust, scale, and sludge to restore coolant flow and improve radiator heat transfer.\u003c\/strong\u003e\n\n\u003cp\u003eOver time cooling systems collect rust, mineral deposits, and oily residues that narrow coolant passages and degrade thermal performance. This 16-ounce concentrate from Design Engineering (DEI) is formulated to clean the radiator, heater core, and internal passages, then be drained away so you can refill with fresh coolant. The product is compatible with common coolant chemistries and radiator materials, making it a straightforward option for routine maintenance or when diagnosing overheating and poor heater performance.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this flush clear rust and scale inside my radiator?\u003c\/h3\u003e\n\u003cp\u003eThe chemical formulation targets and loosens rust, scale, and sludge so they can be flushed out with the cooling system fluid. It works within minutes of circulation and is designed to break deposits into removable particles without aggressive acid attacks on metals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContains agents that dissolve oxidation and mineral buildup.\u003c\/li\u003e\n  \u003cli\u003eIncludes corrosion inhibitors to buffer metal surfaces during cleaning.\u003c\/li\u003e\n  \u003cli\u003eAnti-foaming components keep circulation effective while flushing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs it safe for different radiator materials and coolant types?\u003c\/h3\u003e\n\u003cp\u003eYes — Radiator Relief is formulated to be compatible with cast iron, aluminum, copper, and brass radiators. It also works with ethylene glycol and propylene glycol based antifreeze blends, allowing use across automotive, marine, and light industrial cooling systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSafe for common coolant mixtures and additive packages.\u003c\/li\u003e\n  \u003cli\u003eNon-damaging to seals and hoses when used as directed.\u003c\/li\u003e\n  \u003cli\u003eBalanced pH and corrosion inhibitors help protect metals during treatment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use this product for best results?\u003c\/h3\u003e\n\u003cp\u003eApplication is simple: add the recommended dose to the radiator or coolant reservoir, run the engine to circulate the solution, then drain and flush the system before refilling. Follow the usage rate of approximately 1 oz per quart of coolant for effective cleaning without over-concentration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePour into a cold radiator or overflow reservoir before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eRun engine until the thermostat opens and allow circulation for the specified time.\u003c\/li\u003e\n  \u003cli\u003eDrain, flush with water as needed, and refill with fresh coolant mixture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill regular use prevent future corrosion and overheating?\u003c\/h3\u003e\n\u003cp\u003eUsing a cleaning treatment as part of scheduled maintenance reduces buildup that restricts coolant flow and heat exchange. While no product guarantees permanent prevention, regular flushing and correct coolant service extend component life and lower the chance of overheating caused by internal deposits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHelps maintain efficient coolant circulation and heat transfer.\u003c\/li\u003e\n  \u003cli\u003eRemoves deposits that can harbor corrosion and block passages.\u003c\/li\u003e\n  \u003cli\u003eSupports longer service intervals and fewer emergency repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Design Engineering Radiator Relief Cooling System Flush is aimed at vehicle owners, DIY mechanics, and professional technicians who need a reliable cleaning treatment for gasoline and diesel cooling systems. It fits drivers maintaining passenger cars, light trucks, boats, and equipment with mixed-metal radiators who want a safe, easy-to-use flush to restore cooling performance and protect components during cleaning.\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 Radiator Relief with any coolant type?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it's compatible with common ethylene and propylene glycol antifreezes and their mixtures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How much product do I add per coolant volume?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use about 1 oz of Radiator Relief for every quart of coolant in the system.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Design Engineering","offers":[{"title":"Default Title","offer_id":67593239888057,"sku":"B000NV1PBY","price":60.05,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/design-engineering-radiator-relief-front-label.jpg?v=1790573521","url":"https:\/\/redleafauto.ca\/products\/design-engineering-radiator-relief-cooling-system-flush-16-oz-cleans-rust-scale-protects-metals","provider":"Redleaf Auto","version":"1.0","type":"link"}