{"product_id":"sierra-9420cat2-4-stroke-mineral-marine-outboard-engine-oil-10w-30-1-quart","title":"Sierra 9420CAT2 4-Stroke Mineral Marine Outboard Engine Oil, 10W-30, 1 Quart","description":"\u003ch2\u003eSierra 9420CAT2 4-Stroke Mineral Marine Engine Oil, 10W-30 – 1 Quart\u003c\/h2\u003e\u003cp\u003eA premium mineral-base 10W-30 engine oil formulated specifically for marine 4-stroke outboard engines. Sierra 9420CAT2 meets or exceeds the lubrication requirements of Mercury, Yamaha, Johnson-Evinrude, Suzuki, and Honda outboards — providing reliable protection against wear, corrosion, and sludge buildup in a convenient single-quart size.\u003c\/p\u003e\u003cp\u003eAt 1 quart (946 mL), this is the right size for \u003cstrong\u003esmaller outboards, top-ups between full services, or trying the oil before committing to a larger quantity\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-specific formulation\u003c\/strong\u003e — engineered for the demands of 4-stroke outboard engines, not repurposed automotive oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-wear additives\u003c\/strong\u003e — reduce friction and protect engine internals under sustained load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum corrosion protection\u003c\/strong\u003e — guards against moisture and salt exposure in the marine environment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSludge control\u003c\/strong\u003e — keeps engine internals cleaner for better long-term efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-temperature viscosity\u003c\/strong\u003e — supports reliable cold-weather and cold-start performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad OEM compatibility\u003c\/strong\u003e — meets API SJ, CF-2, and CH-4 service classifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eViscosity: SAE 10W-30\u003c\/li\u003e\n\u003cli\u003eBase stock: Mineral\u003c\/li\u003e\n\u003cli\u003eAPI service: SJ, CF-2, CH-4\u003c\/li\u003e\n\u003cli\u003eVolume: 1 US quart (946 mL)\u003c\/li\u003e\n\u003cli\u003ePart number: 9420CAT2 | SKU: 47-9420CAT2\u003c\/li\u003e\n\u003cli\u003eCompatible engines: Mercury, Yamaha, Johnson-Evinrude, Suzuki, Honda 4-stroke outboards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest Use Case\u003c\/h3\u003e\u003cp\u003eThe 1-quart size is ideal for \u003cstrong\u003esmall outboards (under 50 HP)\u003c\/strong\u003e where a full drain-and-fill requires less than a litre, or for topping up oil between scheduled services on larger engines. It’s also a practical choice for boaters who want to try the oil before purchasing in larger quantities.\u003c\/p\u003e\u003cp\u003eFor a full service on mid-size outboards, the \u003ca href=\"\/products\/sierra-9420cat3-4-stroke-mineral-marine-outboard-engine-oil-10w-30-1-gallon\"\u003eSierra 9420CAT3 10W-30, 1-Gallon\u003c\/a\u003e offers better value per litre. For high-volume shop use, see the \u003ca href=\"\/products\/sierra-9420cat7-4-stroke-mineral-marine-outboard-engine-oil-10w-30-55-gal-drum\"\u003eSierra 9420CAT7 10W-30, 55-Gallon Drum\u003c\/a\u003e. For a synthetic blend upgrade with FC-W certification, see the \u003ca href=\"\/products\/sierra-synthetic-blend-10w30-fc-w-4-stroke-outboard-engine-oil-1-qt-9421cat2\"\u003eSierra 9421CAT2 Synthetic Blend 10W-30, 1 Quart\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eBest use case is the small-engine recreational boater — portable outboards, tenders, and small fishing boats under 50 HP where a quart is all that’s needed for a full service. Also a strong seller as a top-up product for customers who already have a larger engine and just need to bring the oil level up between changes. Upsell path: customers doing a full service on a mid-size or larger outboard should be directed to the \u003ca href=\"\/products\/sierra-9420cat3-4-stroke-mineral-marine-outboard-engine-oil-10w-30-1-gallon\"\u003e1-gallon (9420CAT3)\u003c\/a\u003e for better value. For warranty-conscious Yamaha and Mercury customers, flag the FC-W certification question and redirect to the \u003ca href=\"\/products\/sierra-synthetic-blend-10w30-fc-w-4-stroke-outboard-engine-oil-1-qt-9421cat2\"\u003eSierra 9421CAT2 Synthetic Blend (FC-W)\u003c\/a\u003e if needed. Always confirm OEM oil spec in the owner’s manual before recommending.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199660130340,"sku":"47-9420CAT2","price":20.69,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-9420CAT2.jpg?v=1785611251","url":"https:\/\/marisolmarine.com\/products\/sierra-9420cat2-4-stroke-mineral-marine-outboard-engine-oil-10w-30-1-quart","provider":"Marisol Marine Company","version":"1.0","type":"link"}