{"product_id":"mercury-10w-30-4-stroke-marine-engine-oil-1-quart-mineral-corrosion-wear-protection","title":"MERCURY 10W-30 4-Stroke Marine Engine Oil 1 Quart — Mineral, Corrosion \u0026 Wear Protection","description":"\u003cstrong\u003eMercury 10W-30 4-Stroke Mineral Marine Engine Oil (1 quart) is a purpose-built mineral lubricant formulated to protect and preserve four-stroke marine engines both on and off the water.\u003c\/strong\u003e\n\n\u003cp\u003eBoats and personal watercraft operate in salt, moisture and variable temperatures that demand oil engineered specifically for marine use. Mercury’s 10W-30 mineral oil (part number 8M0078625) combines a robust additive package with a base oil tuned for marine conditions, delivering corrosion resistance, wear protection and reliable viscosity control for engines that specify 10W-30.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this oil protect a four-stroke marine engine?\u003c\/h3\u003e\n\u003cp\u003eThis formula includes specialized additives to limit corrosion and wear in the humid, salty environment typical of boating. It helps maintain oil film strength and keeps critical moving parts lubricated during operation and storage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrosion inhibitors help protect metal surfaces when engines sit between uses.\u003c\/li\u003e\n  \u003cli\u003eAnti-wear additives reduce friction on camshafts, bearings and pistons.\u003c\/li\u003e\n  \u003cli\u003eViscosity retention ensures dependable lubrication across typical marine temperature ranges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this oil compatible with my engine and warranty requirements?\u003c\/h3\u003e\n\u003cp\u003eYes — Mercury 10W-30 mineral oil exceeds marine industry standards and is certified FC-W and FC-W Catalyst Compatible, meeting manufacturer guidelines where 10W-30 is specified. It’s formulated to meet the original equipment specifications used by Mercury and many other four-stroke marine engine makers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeets FC-W certification for four-stroke marine engines.\u003c\/li\u003e\n  \u003cli\u003eCatalyst-compatible formulation where applicable.\u003c\/li\u003e\n  \u003cli\u003eProduced to Mercury Marine’s OEM-level testing and quality criteria.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen should I choose this mineral oil over synthetic options?\u003c\/h3\u003e\n\u003cp\u003eChoose this mineral 10W-30 when the engine manufacturer lists mineral oil or when you need a proven, cost-effective option that matches warranty requirements. It is ideal for routine service intervals and for engines operated in typical recreational boating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended when manufacturer calls for 10W-30 mineral oil.\u003c\/li\u003e\n  \u003cli\u003eGreat value for standard service intervals and regular recreational use.\u003c\/li\u003e\n  \u003cli\u003eProvides industry-standard protection without the premium cost of synthetics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance benefits can I expect during and after use?\u003c\/h3\u003e\n\u003cp\u003eExpect stable viscosity and dependable lubrication that supports long-term engine reliability. The formulation focuses on reducing wear and preventing corrosion, helping engines run more smoothly and potentially extending component life when combined with proper maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOutstanding wear protection extends engine component life.\u003c\/li\u003e\n  \u003cli\u003eCorrosion resistance during storage and regular operation.\u003c\/li\u003e\n  \u003cli\u003eConsistent viscosity for reliable starts and sustained performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for: Mercury 10W-30 4-Stroke Mineral Marine Engine Oil is intended for boat owners, marina technicians and recreational watercraft operators who need a trusted, OEM-quality mineral oil for four-stroke marine engines that call for 10W-30. It suits anyone keeping engines to factory service schedules, those seeking FC-W certified oils, and users who want a cost-effective, manufacturer-backed lubricant for everyday marine use.\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: Can I use this oil in any four-stroke marine engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use it where the manufacturer specifies 10W-30 mineral oil; it meets FC-W standards and is compatible with many four-stroke marine engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this oil safe for engines with catalytic systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The formulation is FC-W Catalyst Compatible, designed to be safe where catalyst compatibility is required.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MERCURY","offers":[{"title":"Default Title","offer_id":67592934424761,"sku":"B00HURPZDS","price":62.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/mercury-10w30-front-quart-label.jpg?v=1790569847","url":"https:\/\/redleafauto.ca\/products\/mercury-10w-30-4-stroke-marine-engine-oil-1-quart-mineral-corrosion-wear-protection","provider":"Redleaf Auto","version":"1.0","type":"link"}