{"product_id":"mercury-antifreeze-50f-1-gallon-8m0073201","title":"Mercury Antifreeze – -50°F, 1 Gallon | 8M0073201","description":"\u003ch2\u003eMercury Antifreeze – -50°F Marine Water-System Antifreeze | 8M0073201\u003c\/h2\u003e\u003cp\u003eProtect your marine engine and onboard water systems from freeze damage during winter storage with this genuine Mercury OEM antifreeze. The ready-to-use propylene glycol formula circulates through raw-water cooling passages, livewell systems, and boat plumbing to displace water and prevent freeze expansion that can crack engine blocks, pumps, hoses, and fittings. The bright pink color makes it easy to confirm the antifreeze has fully circulated during winterization.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury outboard engines — 2.5 HP through 400 HP (FourStroke, Pro XS, Verado)\u003c\/li\u003e\n\u003cli\u003eMerCruiser sterndrive and inboard engines — 3.0L, 4.3L V6, 5.0L V8, 5.7L V8, 6.2L V8, 7.4L V8, 8.2L V8\u003c\/li\u003e\n\u003cli\u003eRaw-water cooling systems on any marine engine\u003c\/li\u003e\n\u003cli\u003eLivewell and wash-down systems\u003c\/li\u003e\n\u003cli\u003eFreshwater plumbing on boats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot for use in closed-cooling (freshwater-cooled) engine systems\u003c\/strong\u003e — those require engine coolant, not water-system antifreeze\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePart Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 8M0073201\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury Reference:\u003c\/strong\u003e 92-8M0073201\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mercury \/ Quicksilver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Marine water-system antifreeze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormula:\u003c\/strong\u003e Propylene glycol — non-toxic, ready-to-use (no dilution required)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst Protection:\u003c\/strong\u003e -50°F (-46°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreeze Protection:\u003c\/strong\u003e Approximately 12°F to 16°F (-11°C to -8°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Size:\u003c\/strong\u003e 1 Gallon (3.78 L)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Bright pink\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eService Interval\u003c\/h3\u003e\u003cp\u003eUse during annual winterization before storage in freezing climates. Flush and replace with fresh water at spring commissioning before returning the engine to service.\u003c\/p\u003e\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this the same as engine coolant?\u003c\/strong\u003e No. This is a water-system antifreeze for raw-water cooling passages and plumbing. Closed-cooling systems require a separate engine coolant. Do not use this product in a closed-cooling system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo I need to dilute it?\u003c\/strong\u003e No — this is a ready-to-use formula. Use it straight from the jug.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow much do I need?\u003c\/strong\u003e Quantity depends on engine size and the number of systems being winterized. A single gallon typically covers one outboard or sterndrive engine; larger engines or multiple systems may require more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I use automotive antifreeze instead?\u003c\/strong\u003e No. Automotive antifreeze (ethylene glycol) is toxic and not safe for marine plumbing or livewell systems. Always use a non-toxic propylene glycol marine antifreeze.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat’s the difference between -50°F and -100°F versions?\u003c\/strong\u003e The -50°F version is suitable for most Canadian and northern US climates. The -100°F version provides additional protection for extreme cold storage environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRelated Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mercury-antifreeze-100f-8m0073203\"\u003eMercury Antifreeze – -100°F, 1 Gallon | 8M0073203\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mercury-antifreeze-100f-55-gallon-8m0073204\"\u003eMercury Antifreeze – -100°F, 55 Gallon | 8M0073204\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mercruiser-fogging-oil-858081k03\"\u003eMerCruiser Fogging Oil – 858081K03\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/quicksilver-rust-guard-rust-inhibitor-12oz-858081kc3\"\u003eQuicksilver Rust Guard Rust Inhibitor – 858081KC3\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThis is the go-to antifreeze for winterizing raw-water cooled outboards and MerCruiser sterndrives in climates where temperatures drop below freezing. The most common mistake is confusing this with engine coolant — this product goes into the raw-water side of the cooling system, not the closed-cooling circuit. A second common error is under-buying: one gallon is usually enough for a single engine, but if you’re also winterizing a livewell, wash-down pump, or freshwater system, plan for more. Always run the antifreeze until you see pink coming out the exhaust or discharge point to confirm full circulation. Pair with fogging oil for complete engine storage protection.\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563912396836,"sku":"8M0073201","price":12.66,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/737d5996-01e0-497b-a9a3-3d7d0b97ab6c.png?v=1773439078","url":"https:\/\/marisolmarine.com\/products\/mercury-antifreeze-50f-1-gallon-8m0073201","provider":"Marisol Marine Company","version":"1.0","type":"link"}