{"product_id":"design-engineering-radiator-relief-cooling-system-flush-16-oz-restores-coolant-flow-removes-rust-scale","title":"Design Engineering Radiator Relief Cooling System Flush 16 oz — Restores Coolant Flow, Removes Rust \u0026 Scale","description":"\u003cp\u003e\u003cstrong\u003eDesign Engineering Radiator Relief Cooling System Flush is a 16 oz professional-strength treatment that dissolves rust, scale, and sludge to restore coolant flow and radiator efficiency.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eLeft unchecked, deposits inside radiators and cooling passages reduce heat transfer and raise the risk of overheating. This concentrated formula is designed to clean internal passages in passenger cars, trucks, marine engines, and light industrial equipment while remaining compatible with common antifreeze types and radiator metals. Use as part of scheduled maintenance or when diagnosing cooling system performance issues.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this flush improve cooling performance?\u003c\/h3\u003e\n\u003cp\u003eThe treatment targets mineral scale, rust, and sludge that impede coolant circulation and heat exchange. By removing those obstructions, flow is restored and the radiator can dissipate heat more effectively, which helps stabilize engine temperatures under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDissolves corrosion and mineral deposits that restrict coolant pathways\u003c\/li\u003e\n  \u003cli\u003eRestores proper coolant flow through radiator, heater core, and passages\u003c\/li\u003e\n  \u003cli\u003eImproves heat transfer for more consistent operating temperatures\u003c\/li\u003e\n  \u003cli\u003eHelps reduce overheating incidents caused by internal blockages\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs it safe for my radiator and coolant type?\u003c\/h3\u003e\n\u003cp\u003eYes — the formula includes corrosion inhibitors and anti-foaming additives to protect metals and components while balancing pH. It’s formulated to be compatible with cast iron, aluminum, copper, and brass radiators and with ethylene- and propylene-glycol based antifreeze blends.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSafe with common coolant mixtures and concentrations\u003c\/li\u003e\n  \u003cli\u003eProtects metal surfaces and seals from acidic attack\u003c\/li\u003e\n  \u003cli\u003eContains anti-foam agents to prevent air pockets during circulation\u003c\/li\u003e\n  \u003cli\u003eSuitable for automotive, marine, and light industrial cooling systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the 16 oz bottle — what’s the dosage and procedure?\u003c\/h3\u003e\n\u003cp\u003eDosage is straightforward: follow the recommended ratio and run the engine to circulate the cleaner through the system. After the flush cycle, drain and refill with fresh coolant according to the vehicle manufacturer’s guidelines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended dose: roughly 1 oz per quart of coolant (adjust to system capacity)\u003c\/li\u003e\n  \u003cli\u003eAdd to radiator or coolant reservoir with engine cold, then run to operating temperature\u003c\/li\u003e\n  \u003cli\u003eDrain, flush with water if needed, and refill with the correct coolant mix\u003c\/li\u003e\n  \u003cli\u003eRepeat service intervals as part of routine cooling system maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this help prevent future buildup and corrosion?\u003c\/h3\u003e\n\u003cp\u003eBeyond breaking down existing deposits, the product leaves behind corrosion inhibitors that slow future formation of rust and scale. Regular application as directed can reduce the frequency of deep-clean interventions and help prolong component life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNeutralizes acidic residues and helps maintain stable pH\u003c\/li\u003e\n  \u003cli\u003eDeposits corrosion inhibitors to protect metal surfaces\u003c\/li\u003e\n  \u003cli\u003eReduces mineral-scale reattachment after cleaning\u003c\/li\u003e\n  \u003cli\u003eCan extend maintenance intervals when used as recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Design Engineering Radiator Relief Cooling System Flush is aimed at DIY enthusiasts, fleet technicians, marine operators, and anyone responsible for maintaining engine cooling systems. It’s appropriate for vehicles and equipment that need internal cleaning to address overheating symptoms, slow warm-up issues, or routine preventative maintenance. Use it when performing radiator service or as part of seasonal coolant changes to keep cooling systems running efficiently.\u003c\/p\u003e\n\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?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It is compatible with common ethylene- and propylene-glycol antifreeze blends and works safely with most coolant types.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I use this flush?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use during scheduled coolant changes or when flushing a cooling system that shows rust, sludge, or flow restriction; follow manufacturer service intervals.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Design Engineering","offers":[{"title":"Default Title","offer_id":55163080671575,"sku":"B000NV1PBY","price":33.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/design-engineering-radiator-relief-front-label.jpg?v=1790341171","url":"https:\/\/britishgarage.co.uk\/products\/design-engineering-radiator-relief-cooling-system-flush-16-oz-restores-coolant-flow-removes-rust-scale","provider":"British Garage","version":"1.0","type":"link"}