{"product_id":"sierra-18-9420cat-3-10w-30-fc-w-4-stroke-catalyst-marine-engine-oil-1-gallon-mercury-8m0078626-equivalent","title":"Sierra 10W-30 FC-W 4-Stroke Catalyst Engine Oil, 1 Gallon - Part 18-9420CAT-3 (Mercury 92-8M0078626)","description":"\u003cp\u003eThe Sierra 18-9420CAT-3 is a 1-gallon jug of 10W-30 FC-W 4-stroke catalyst engine oil, formulated to meet the requirements of modern 4-stroke recreational engines with or without catalytic converters. This oil is designed to protect against wear, heat, and deposit buildup in the demanding conditions that recreational 4-stroke marine engines operate under, helping maintain consistent lubrication performance across the operating range.\u003c\/p\u003e\u003cp\u003ePackaged in a durable 1-gallon jug for easy pouring and storage, this catalyst oil is offered in a 10W-30 viscosity grade suited to a wide range of 4-stroke outboard and sterndrive applications. It carries a direct Mercury cross-reference number, making it a straightforward match for engines that call for that formulation. Each case ships with 6 gallon jugs, making it a practical option for shops, marinas, and boat owners who go through oil regularly.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-9420CAT-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury Cross Reference Number:\u003c\/strong\u003e 92-8M0078626\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Type:\u003c\/strong\u003e 10W-30 FC-W 4-Stroke Catalyst Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Size:\u003c\/strong\u003e 1 Gallon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type:\u003c\/strong\u003e Jug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Quantity:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 7.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282326104\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFormulated for modern 4-stroke recreational engines, with or without catalytic converters.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e92-8M0078626\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat viscosity is the Sierra 18-9420CAT-3 engine oil?\u003c\/strong\u003e The Sierra 18-9420CAT-3 is a 10W-30 FC-W 4-stroke catalyst engine oil, packaged in a 1-gallon jug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is this oil designed for?\u003c\/strong\u003e This 10W-30 FC-W catalyst oil is formulated for modern 4-stroke recreational engines, with or without catalytic converters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-9420CAT-3 have a Mercury equivalent part number?\u003c\/strong\u003e Yes, part 18-9420CAT-3 corresponds to Mercury number 92-8M0078626.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does a gallon of this oil weigh?\u003c\/strong\u003e A 1-gallon jug of the Sierra 18-9420CAT-3 catalyst engine oil weighs 7.7 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size container does this oil come in?\u003c\/strong\u003e 18-9420CAT-3 is packaged as a 1-gallon jug, with 6 jugs per case.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil sold by the case?\u003c\/strong\u003e The 18-9420CAT-3 gallon jug ships in cases of 6; a corresponding pallet quantity is also available under a separate part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this product?\u003c\/strong\u003e The UPC for the Sierra 18-9420CAT-3 10W-30 FC-W catalyst engine oil gallon is 808282326104.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a synthetic oil?\u003c\/strong\u003e 18-9420CAT-3 is a conventional 10W-30 FC-W catalyst formulation; Sierra also offers a separate 25W-40 synthetic catalyst oil line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does FC-W mean on this oil?\u003c\/strong\u003e FC-W is the oil specification designation shown on the Sierra 18-9420CAT-3 label, indicating it meets the FC-W 4-stroke marine oil standard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre smaller or larger container sizes available?\u003c\/strong\u003e The 10W-30 FC-W catalyst oil formulation used in 18-9420CAT-3 is also offered in quart and 55-gallon container sizes under separate part numbers.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988436529371,"sku":"SIE-18-9420CAT-3","price":33.89,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9420CAT-3.png?v=1784938576","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-9420cat-3-10w-30-fc-w-4-stroke-catalyst-marine-engine-oil-1-gallon-mercury-8m0078626-equivalent","provider":"Good Vibes Marina","version":"1.0","type":"link"}