{"product_id":"sierra-96903-10w30-fcw-synthetic-4-stroke-marine-oil-gal","title":"Sierra 96903 10W-30 FCW Synthetic 4-Stroke Marine Oil — 1 Gal","description":"\u003ch2\u003eFull-Synthetic 4-Stroke Marine Engine Oil in a Gallon Size\u003c\/h2\u003e\u003cp\u003eSierra 96903 delivers the same full-synthetic 10W-30 formulation as the quart-size 96902 — now in a gallon for owners and technicians who go through more oil each season. Built on a synthetic base oil with a precision-balanced additive system, it exceeds NMMA FC-W® certification requirements and is recommended for both 4-stroke outboard and sterndrive engines.\u003c\/p\u003e\u003cp\u003eThe gallon format offers a lower per-quart cost while maintaining the same superior protection: faster cold-start lubrication, excellent high-temperature stability, and greater oxidation resistance that helps reduce oil consumption over time.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eExceeds NMMA FC-W® Certified standards — not just meets them\u003c\/li\u003e\n\u003cli\u003eSynthetic base oil for superior film strength and thermal stability\u003c\/li\u003e\n\u003cli\u003eFaster lubrication at cold start — critical protection during the first seconds of engine operation\u003c\/li\u003e\n\u003cli\u003eExcellent high-temperature protection for hard-working marine engines\u003c\/li\u003e\n\u003cli\u003eGreater oxidation resistance helps reduce oil consumption between changes\u003c\/li\u003e\n\u003cli\u003eRecommended for both outboard and sterndrive 4-stroke applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAlso Available\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11120076161060\"\u003eSierra 96902 10W-30 FCW Synthetic 4-Stroke Marine Oil — 1 Qt\u003c\/a\u003e — quart size for single-engine or occasional use\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11120076062756\"\u003eSierra 94203 10W-30 FCW 4-Stroke Outboard Oil — 1 Gal\u003c\/a\u003e — conventional formula gallon option\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11120075964452\"\u003eSierra 9394 Oil Change Kit\u003c\/a\u003e — complete service kit with filter, gasket, funnel, maintenance sticker, and shop towel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe gallon synthetic is the best recommendation for performance-focused customers who do multiple oil changes per season and don’t want to compromise on protection. Best use case: high-hour engines, twin-engine boats, year-round operators, and anyone whose manufacturer approves or recommends a full-synthetic FC-W oil. The gallon format makes the synthetic upgrade more cost-effective per quart — an easy conversation when a customer is already reaching for the conventional gallon.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199653347364,"sku":"47-96903","price":120.49,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-96903.jpg?v=1785611213","url":"https:\/\/marisolmarine.com\/products\/sierra-96903-10w30-fcw-synthetic-4-stroke-marine-oil-gal","provider":"Marisol Marine Company","version":"1.0","type":"link"}