{"product_id":"liqui-moly-pro-line-engine-flush-500-ml-dissolves-sludge-lacquer-safe-for-seals","title":"Liqui Moly Pro-Line Engine Flush 500 ml — dissolves sludge \u0026 lacquer, safe for seals","description":"\u003cp\u003e\u003cstrong\u003eLiqui Moly Pro-Line Engine Flush is a 500 ml oil-additive treatment designed to dissolve sludge, lacquer and deposits so you can safely flush them out before changing engine oil.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBefore replacing engine oil, leftover deposits and contaminants can reduce oil performance and engine efficiency. Liqui Moly Pro-Line Engine Flush is formulated for use in all four-stroke gasoline and diesel engines to loosen and suspend residues so they drain away with the oil. It’s compatible with commercially available engine oils and safe for seals and catalytic converters when used as directed.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use Pro-Line Engine Flush before an oil change?\u003c\/h3\u003e\n\u003cp\u003eUsing this product is straightforward: add the 500 ml bottle to the existing engine oil, run the engine at idle for ten minutes to circulate the formulation, then drain the oil and replace the oil filter. Finally, refill with fresh engine oil to restore full lubrication properties.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdd the entire 500 ml bottle to warm engine oil.\u003c\/li\u003e\n  \u003cli\u003eRun the engine at idle for approx. 10 minutes to circulate and dissolve deposits.\u003c\/li\u003e\n  \u003cli\u003eDrain oil, replace the oil filter, and refill with fresh oil.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat kinds of deposits and contaminants will it remove?\u003c\/h3\u003e\n\u003cp\u003ePro-Line is designed to dissolve sludge, lacquer and other viscous deposits that build up inside the crankcase, oil galleries and sludge traps. It also helps isolate solid particles and liquid contaminants so they can be removed during the drain process.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDissolves sludge and lacquer from engine internals.\u003c\/li\u003e\n  \u003cli\u003eLoosens varnish and sticky deposits on bearings and galleries.\u003c\/li\u003e\n  \u003cli\u003eSuspends solid particles and separates liquid contaminants for easier draining.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs Pro-Line compatible with my engine and seals?\u003c\/h3\u003e\n\u003cp\u003eYes — the formula is neutral toward seals and common engine materials and is safe for catalytic converters. It’s suitable for both gasoline and diesel four-stroke engines and works alongside standard engine oils without adverse interactions when used according to instructions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNeutral to rubber seals and common engine materials.\u003c\/li\u003e\n  \u003cli\u003eCompatible with catalytic converters and exhaust aftertreatment systems.\u003c\/li\u003e\n  \u003cli\u003eWorks with all commercially available engine oils.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will this product affect engine performance and oil properties?\u003c\/h3\u003e\n\u003cp\u003eBy removing internal deposits and contaminants, Pro-Line helps recover oil lubricating properties and can improve combustion efficiency and overall engine responsiveness. It’s a maintenance step to restore performance lost to internal build-up rather than a long-term additive for continuous use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHelps restore oil’s lubricating characteristics after deposits are removed.\u003c\/li\u003e\n  \u003cli\u003eCan improve combustion process and engine responsiveness post-flush.\u003c\/li\u003e\n  \u003cli\u003ePrevents corrosion of exposed metal surfaces during the cleaning cycle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Liqui Moly Pro-Line Engine Flush 500 ml is intended for vehicle owners, mechanics and service shops preparing for an oil change who want a quick, effective way to clean internal oil passages and remove residues. It’s especially useful for vehicles showing signs of oil contamination, mild sludge formation or reduced oil performance, and for anyone wanting a thorough oil-change service using a product compatible with modern engines and exhaust systems.\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: How long do I run the engine after adding the flush?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Run the engine at idle for about 10 minutes to circulate the flush before draining the oil.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use Pro-Line with any engine oil brand?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it’s compatible with all commercially available engine oils when used as directed.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Liqui Moly","offers":[{"title":"Default Title","offer_id":48087506682014,"sku":"B00CR3RXTO","price":37.74,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/liqui-moly-pro-line-front-packaging_2bd22785-c67e-4160-8813-3c45849443e3.jpg?v=1785924987","url":"https:\/\/northtrailauto.ca\/products\/liqui-moly-pro-line-engine-flush-500-ml-dissolves-sludge-lacquer-safe-for-seals","provider":"North Trail Auto","version":"1.0","type":"link"}