{"product_id":"sierra-95512-10w40-fcw-synthetic-blend-4-cycle-marine-engine-oil-qt","title":"Sierra 95512 10W-40 FC-W Synthetic Blend 4-Cycle Marine Engine Oil – 1 Qt.","description":"\u003ch2\u003eSierra 95512 10W-40 FC-W Synthetic Blend Marine Engine Oil – 1 Qt.\u003c\/h2\u003e\u003cp\u003eA 1-quart bottle of Sierra’s 10W-40 synthetic blend marine engine oil, meeting both \u003cstrong\u003eNMMA FC-W\u003c\/strong\u003e and \u003cstrong\u003eAPI SL\u003c\/strong\u003e certifications. Formulated for 4-cycle outboard and inboard engines operating without a catalytic converter, this oil maintains a stable viscosity film across a wide temperature range while providing elevated rust and corrosion inhibitors for both saltwater and freshwater environments. The synthetic blend base delivers strong shear stability and high-load bearing protection under sustained engine use.\u003c\/p\u003e\u003cp\u003eThe quart format is ideal for topping up oil between services, carrying a spare on board, or completing a partial oil change on a small-displacement engine.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 95512\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity:\u003c\/strong\u003e 10W-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e NMMA FC-W \/ API SL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine type:\u003c\/strong\u003e 4-cycle outboard and inboard (non-catalytic converter)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 1 US quart (~946 mL)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Synthetic blend\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9 kg (2.0 lb)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e The quart is the right pick for topping up oil mid-season, keeping a spare aboard for longer passages, or performing a full oil change on a small single-cylinder 4-stroke kicker or auxiliary outboard. For a full oil change on a mid-size or larger 4-stroke outboard, the \u003ca href=\"\/products\/sierra-95513-10w40-fcw-synthetic-blend-4-cycle-marine-engine-oil-1-gal\"\u003eSierra 95513 10W-40 FC-W Oil – 1 Gal.\u003c\/a\u003e is the more practical choice. High-volume shop and fleet users should consider the \u003ca href=\"\/products\/sierra-95517-10w40-fcw-synthetic-blend-4-cycle-marine-engine-oil-55-gal-drum\"\u003eSierra 95517 10W-40 FC-W Oil – 55 Gal. Drum\u003c\/a\u003e for the best per-litre value. Not intended for 2-stroke engines or engines equipped with catalytic converters.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199652266020,"sku":"47-95512","price":20.59,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-95512.jpg?v=1785611195","url":"https:\/\/marisolmarine.com\/products\/sierra-95512-10w40-fcw-synthetic-blend-4-cycle-marine-engine-oil-qt","provider":"Marisol Marine Company","version":"1.0","type":"link"}