{"product_id":"merc-1125","title":"Mercruiser 4-Stroke Synthetic Oil 4L - OEM Part 8M0078642","description":"\u003cp data-start=\"108\" data-end=\"536\"\u003eMercury 8M0078642 is a genuine OEM \u003cstrong data-start=\"169\" data-end=\"215\"\u003e4-stroke synthetic blend marine engine oil\u003c\/strong\u003e in a \u003cstrong data-start=\"221\" data-end=\"232\"\u003e4-litre\u003c\/strong\u003e container. Dealer listings identify it as \u003cstrong data-start=\"275\" data-end=\"291\"\u003eOIL 4S SYN4L\u003c\/strong\u003e, and Mercury's current marine-oil lineup positions its 4-stroke synthetic blend oils as marine-specific lubricants built for corrosion protection, wear resistance, and viscosity retention in marine engines. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"538\" data-end=\"556\"\u003e\u003cstrong data-start=\"538\" data-end=\"554\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"557\" data-end=\"900\"\u003e\n\u003cli data-start=\"557\" data-end=\"605\"\u003eGenuine Mercury Marine \/ Quicksilver OEM oil\u003c\/li\u003e\n\u003cli data-start=\"606\" data-end=\"635\"\u003ePart number \u003cstrong data-start=\"620\" data-end=\"633\"\u003e8M0078642\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"636\" data-end=\"661\"\u003e\n\u003cstrong data-start=\"638\" data-end=\"649\"\u003e4-litre\u003c\/strong\u003e container\u003c\/li\u003e\n\u003cli data-start=\"662\" data-end=\"712\"\u003e\n\u003cstrong data-start=\"664\" data-end=\"692\"\u003e4-stroke synthetic blend\u003c\/strong\u003e marine engine oil\u003c\/li\u003e\n\u003cli data-start=\"713\" data-end=\"900\"\u003eMercury says its 4-stroke marine oils are engineered for strong lubrication, corrosion prevention, and long-term durability in marine applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"902\" data-end=\"1278\"\u003e\u003cstrong data-start=\"902\" data-end=\"926\"\u003eEngine Compatibility\u003c\/strong\u003e\u003cbr data-start=\"926\" data-end=\"929\"\u003eThis oil belongs to Mercury's \u003cstrong data-start=\"959\" data-end=\"1012\"\u003e25W-40 synthetic blend 4-stroke marine engine oil\u003c\/strong\u003e family, which Mercury describes for \u003cstrong data-start=\"1049\" data-end=\"1110\"\u003eoutboard, sterndrive, and inboard 4-stroke marine engines\u003c\/strong\u003e. Exact oil selection should still be confirmed by the engine owner's manual and serial-number-based parts lookup before purchase. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1280\" data-end=\"1599\"\u003e\u003cstrong data-start=\"1280\" data-end=\"1312\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003cbr data-start=\"1312\" data-end=\"1315\"\u003ePlease confirm the correct oil specification using your exact Mercury or MerCruiser model and serial number in the Mercury Parts Catalog before purchase. Mercury's catalog is organized by model and serial number for accurate application matching. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1601\" data-end=\"2007\"\u003e\u003cstrong data-start=\"1601\" data-end=\"1637\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003cbr data-start=\"1637\" data-end=\"1640\"\u003eUse this oil during routine engine oil changes on applicable 4-stroke marine engines. Fresh marine-grade oil helps protect internal components against friction, corrosion, and viscosity breakdown under marine load and storage conditions. That service guidance is consistent with Mercury's description of its 4-stroke marine oils. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2009\" data-end=\"2302\"\u003e\u003cstrong data-start=\"2009\" data-end=\"2031\"\u003eInstallation Notes\u003c\/strong\u003e\u003cbr data-start=\"2031\" data-end=\"2034\"\u003eUse only the oil viscosity and formulation specified for the engine being serviced. Mercury's 4-stroke synthetic blend oils are marine-specific products, so matching the exact oil grade to the engine manual is the safest approach. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2304\" data-end=\"2345\"\u003e\u003cstrong data-start=\"2304\" data-end=\"2343\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2346\" data-end=\"2471\"\u003e\n\u003cli data-start=\"2346\" data-end=\"2363\"\u003e\u003cstrong data-start=\"2348\" data-end=\"2361\"\u003e8M0078642\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"2364\" data-end=\"2471\"\u003eSupersedes \u003cstrong data-start=\"2377\" data-end=\"2390\"\u003e858053KC1\u003c\/strong\u003e according to dealer supersession listings. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2473\" data-end=\"2827\"\u003e\u003cstrong data-start=\"2473\" data-end=\"2495\"\u003eParts Desk Insight\u003c\/strong\u003e\u003cbr data-start=\"2495\" data-end=\"2498\"\u003eMarine engine oil is not just about viscosity. The additive package matters too, especially for corrosion protection and maintaining film strength in engines that see humidity, storage time, and sustained load. That is why Mercury positions its 4-stroke oils separately from automotive oils. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2829\" data-end=\"2894\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563912986660,"sku":"8M0078642","price":84.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/8M0078642.png?v=1771539888","url":"https:\/\/marisolmarine.com\/products\/merc-1125","provider":"Marisol Marine Company","version":"1.0","type":"link"}