{"product_id":"irontite-thoro-flush-coolant-system-cleaner-16oz-powder-restores-coolant-flow-removes-rust-gelled-dex-cool","title":"IRONTITE Thoro-Flush Coolant System Cleaner 16oz Powder — Restores Coolant Flow, Removes Rust \u0026 Gelled Dex‑Cool","description":"\u003cp\u003e\u003cstrong\u003eThoro-Flush is a concentrated 16 oz powder that dissolves rust, scale, oil, sludge and gelled Dex‑Cool to restore coolant flow in automotive cooling systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen cooling passages become restricted by corrosion, deposits or degraded antifreeze, heat transfer and flow suffer. IRONTITE Thoro-Flush is formulated to break down and remove those contaminants from cast iron, aluminum, brass and plastic components so you can flush them out and return the system to proper circulation. The powder formula treats up to a 6‑gallon cooling system for a single, thorough cleaning session.\u003c\/p\u003e\n\n\u003ch3\u003eHow does Thoro-Flush remove stubborn deposits like gelled Dex‑Cool?\u003c\/h3\u003e\n\n\u003cp\u003eThe chemistry in Thoro-Flush is designed to disperse and dissolve organic gels and inorganic scale that form inside hoses, radiators and heater cores. It loosens adhered material so a standard flush will carry contaminants away instead of pushing them deeper into the system.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSpecifically targets gelled Dex‑Cool and oxidized antifreeze residues.\u003c\/li\u003e\n  \u003cli\u003eBreaks down oil and grease that collect along passageways.\u003c\/li\u003e\n  \u003cli\u003eSoftens rust and mineral scale for mechanical flushing to remove.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs Thoro-Flush safe for aluminum, cast iron and plastic cooling parts?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the formula balances cleaning strength with material compatibility so it can be used on a variety of engine and cooling-system materials. It cleans without aggressive etching, helping preserve radiators, blocks, heater cores and plastic overflow tanks when used as directed.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with aluminum, cast iron, brass and common plastics.\u003c\/li\u003e\n  \u003cli\u003eNon-destructive when diluted and applied per instructions.\u003c\/li\u003e\n  \u003cli\u003eSuitable for use before a fresh coolant fill or system repair.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the 16 oz powder to flush my vehicle’s cooling system?\u003c\/h3\u003e\n\n\u003cp\u003eUsing Thoro-Flush is straightforward: add the powder to the cooling system, run the engine to circulate, then drain and flush until the discharge runs clear. One bottle treats systems up to approximately 6 gallons; follow safety and disposal guidance on the label for best results.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAdd Thoro-Flush powder directly to the radiator or coolant recovery reservoir.\u003c\/li\u003e\n  \u003cli\u003eRun the engine to operating temperature for the recommended time to circulate the cleaner.\u003c\/li\u003e\n  \u003cli\u003eDrain, flush with water until clear, then refill with the correct coolant mixture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat improvements should I expect after using Thoro-Flush?\u003c\/h3\u003e\n\n\u003cp\u003eAfter proper application and a complete flush, you should see improved coolant flow, fewer hotspots, and reduced risk of future blockages caused by leftover deposits. While performance depends on how severe the contamination was, most systems regain noticeably better circulation and responsiveness.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRestored coolant circulation and more uniform engine temperature control.\u003c\/li\u003e\n  \u003cli\u003eCleaner radiator and heater core passageways for longer component life.\u003c\/li\u003e\n  \u003cli\u003eBetter preparation of the system for fresh coolant and preventive maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this product is for: IRONTITE Thoro-Flush is aimed at DIY mechanics, professional technicians and vehicle owners dealing with contaminated or sluggish cooling systems — especially cars and trucks with gelled Dex‑Cool or visible rust and sludge. It’s also a useful pre-treatment when replacing radiators, heater cores or performing major cooling-system service to ensure new coolant flows through a clean system.\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: Will Thoro-Flush harm aluminum radiator parts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. Thoro-Flush is formulated to clean without aggressive etching and is safe for aluminum when used according to directions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How much system capacity does one 16 oz bottle treat?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: One 16 oz bottle treats up to approximately a 6‑gallon cooling system for a single full cleaning cycle.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"IRONTITE","offers":[{"title":"Default Title","offer_id":48087509074078,"sku":"B00JJ1FB28","price":38.72,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/irontite-thoro-flush-front-packaging.jpg?v=1785925042","url":"https:\/\/northtrailauto.ca\/products\/irontite-thoro-flush-coolant-system-cleaner-16oz-powder-restores-coolant-flow-removes-rust-gelled-dex-cool","provider":"North Trail Auto","version":"1.0","type":"link"}