{"product_id":"quicksilver-10w-30-4-stroke-marine-engine-oil-1-quart-fc-w-catalyst-compatible-corrosion-wear-protection","title":"Quicksilver 10W-30 4-Stroke Marine Engine Oil, 1 Quart — FC-W Catalyst-Compatible Corrosion \u0026 Wear Protection","description":"\u003cp\u003e\u003cstrong\u003eQuicksilver 10W-30 4-Stroke Marine Engine Oil (1 quart) is a marine-formulated engine lubricant engineered to protect sterndrive, inboard and outboard 4-stroke engines from wear and corrosion while maintaining stable viscosity under boating conditions.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eClean, purpose-built engine oil is a key factor in prolonging the life of marine powerplants. This Quicksilver 10W-30 blend pairs premium synthetic and mineral base stocks with detergent and anti-corrosion additives tailored for the harsh marine environment. It meets and exceeds marine industry 4-stroke specifications, including FC-W and FC-W Catalyst Compatible, and carries the manufacturer part number 8M0078616 for easy parts matching.\u003c\/p\u003e\n\n\u003ch3\u003eWhat kind of marine engines is this 10W-30 oil suitable for?\u003c\/h3\u003e\n\u003cp\u003eThis oil is formulated for a wide range of 4-stroke marine applications. Use it in outboard motors, inboard engines and sterndrives where the manufacturer recommends a 10W-30 grade and FC-W compatibility. It works across recreational and light commercial boating applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 4-stroke outboards, sterndrives and inboards\u003c\/li\u003e\n\u003cli\u003eCompatible where FC-W and catalyst-compatible oils are specified\u003c\/li\u003e\n\u003cli\u003eAppropriate for both everyday boating and seasonal use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this oil protect engines from marine-specific challenges?\u003c\/h3\u003e\n\u003cp\u003eMarine engines face salt, humidity and variable operating loads; Quicksilver’s formula includes corrosion inhibitors and additives that resist deposit formation and wear. The blend retains viscosity and shear strength so internal parts stay lubricated during long runs and idling periods common on the water.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCorrosion inhibitors protect metal surfaces from salt and moisture\u003c\/li\u003e\n\u003cli\u003eDetergents reduce sludge and varnish build-up\u003c\/li\u003e\n\u003cli\u003eShear-stable viscosity helps maintain film strength under load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance characteristics can I expect from Quicksilver 10W-30?\u003c\/h3\u003e\n\u003cp\u003eExpect reliable cold-start flow at moderate temperatures and stable protection at operating temperature thanks to its 10W-30 viscosity rating. The oil offers balanced oxidation control and wear protection without compromising catalyst compatibility for engines that require it.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10W-30 viscosity for predictable cold and hot performance\u003c\/li\u003e\n\u003cli\u003eGood oxidation resistance for extended change intervals under normal use\u003c\/li\u003e\n\u003cli\u003eFormulated to exceed common 4-stroke marine standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I choose between this quart and larger volumes?\u003c\/h3\u003e\n\u003cp\u003eThe 1-quart size is ideal for topping off between oil changes or for small engines with limited sump capacities. For frequent use or multi-engine installations, consider larger containers to save on packaging and ensure consistent oil supply.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 quart fits most small outboards and for topping off\u003c\/li\u003e\n\u003cli\u003eBuy larger sizes for routine servicing of multiple engines\u003c\/li\u003e\n\u003cli\u003eUse the part number 8M0078616 to find matching sizes and OEM recommendations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boat owners, marina technicians and marine service professionals who need a dependable, manufacturer-backed 4-stroke oil that addresses the unique demands of saltwater and freshwater engines. It's a good fit if you own Mercury or other OEM engines that call for FC-W or catalyst-compatible 10W-30 oil, and for anyone who values proven corrosion resistance, consistent viscosity retention and parts traceability via an OEM part number.\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: Is Quicksilver 10W-30 compatible with my Mercury outboard?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this Quicksilver 10W-30 is designed for marine engines and is the Mercury OEM-referenced product (part 8M0078616), compatible when your manual calls for 10W-30 FC-W oil.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I change the oil using this product?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Follow your engine manufacturer's interval; typical recreational 4-stroke marine engines recommend periodic changes based on hours or season—check your owner’s manual.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Quicksilver","offers":[{"title":"Default Title","offer_id":67591944765625,"sku":"B013F5ESZE","price":56.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/quicksilver-front-quart.jpg?v=1790560481","url":"https:\/\/redleafauto.ca\/products\/quicksilver-10w-30-4-stroke-marine-engine-oil-1-quart-fc-w-catalyst-compatible-corrosion-wear-protection","provider":"Redleaf Auto","version":"1.0","type":"link"}