{"product_id":"volvo-penta-marine-engine-oil-21681794","title":"Volvo Penta OEM Marine Engine Oil 21681794","description":"\u003ch2\u003eVolvo Penta OEM Marine Engine Oil — Part No. 21681794\u003c\/h2\u003e\n\u003cp\u003eThis is the genuine OEM Volvo Penta marine engine oil formulated to factory specifications for compatible Volvo Penta gasoline and diesel marine engines. Designed specifically for the demands of marine operation — including saltwater exposure, high-load running, and extended idle periods — this oil provides the wear protection, thermal stability, and corrosion resistance that Volvo Penta engineers into their lubrication requirements.\u003c\/p\u003e\n\u003cp\u003eIf your Volvo Penta service manual or parts lookup specifies \u003cstrong\u003e21681794\u003c\/strong\u003e, this is the correct oil.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 21681794\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Volvo Penta (OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial Product Type:\u003c\/strong\u003e OEM Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Engine lubrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupersedes:\u003c\/strong\u003e Confirm via Volvo Penta serial-number lookup — earlier references may have been consolidated into this part number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaced By:\u003c\/strong\u003e Confirm via current Volvo Penta parts catalog\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp\u003eUse only where Volvo Penta part number \u003cstrong\u003e21681794\u003c\/strong\u003e is specified. Always verify the correct oil grade and specification against your engine model and service manual before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible Volvo Penta gasoline marine engines\u003c\/li\u003e\n\u003cli\u003eCompatible Volvo Penta diesel marine engines\u003c\/li\u003e\n\u003cli\u003eSterndrive and inboard applications where this OEM oil reference is specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine OEM Volvo Penta formulation — meets factory lubrication specifications\u003c\/li\u003e\n\u003cli\u003eSuperior wear protection for marine engine internals under load\u003c\/li\u003e\n\u003cli\u003eExcellent thermal stability for high-temperature and extended-run operation\u003c\/li\u003e\n\u003cli\u003eCorrosion resistance for both saltwater and freshwater environments\u003c\/li\u003e\n\u003cli\u003eMaintains viscosity across a wide operating temperature range\u003c\/li\u003e\n\u003cli\u003eFormulated to protect against sludge and deposit buildup in marine duty cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eChange engine oil at the interval specified in your Volvo Penta service manual — typically every 100–150 hours or annually, whichever comes first. Also change after any contamination event, extended storage, or when oil appears dark, milky, or has a burnt smell. Always replace the oil filter at every oil change.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the correct oil grade and specification for your engine model before filling\u003c\/li\u003e\n\u003cli\u003eAlways replace the oil filter at the same time as the oil change\u003c\/li\u003e\n\u003cli\u003eDrain fully before refilling — do not top up old oil with new\u003c\/li\u003e\n\u003cli\u003eCheck the dipstick after filling and run the engine briefly to circulate oil before rechecking the level\u003c\/li\u003e\n\u003cli\u003eDispose of used oil responsibly at a certified marine or automotive recycling facility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Parts\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-oil-filter-21549542\"\u003eVolvo Penta Oil Filter — 21549542\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-oil-filter-3517857\"\u003eVolvo Penta Oil Filter — 3517857\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-oil-filter-835440\"\u003eVolvo Penta Oil Filter — 835440\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-oil-filter-841750\"\u003eVolvo Penta Oil Filter — 841750\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-oil-filter-861475-21549544\"\u003eVolvo Penta Oil Filter — 861475 \/ 21549544\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-transmission-oil-1141680\"\u003eVolvo Penta Transmission Oil — 1141680\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-marine-sealant-1161277\"\u003eVolvo Penta Marine Sealant Black RTV Silicone — 1161277\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use a standard automotive engine oil instead of the OEM marine oil?\u003c\/strong\u003e\u003cbr\u003eAutomotive oils are not formulated for the specific demands of marine engines — including higher sustained RPM, saltwater corrosion exposure, and the absence of a catalytic converter (which affects additive packages). Volvo Penta OEM oil is the safest choice for protecting your engine and maintaining warranty compliance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know what viscosity grade this oil is?\u003c\/strong\u003e\u003cbr\u003eConfirm the viscosity grade and specification in your Volvo Penta engine service manual or by cross-referencing part number 21681794 in the Volvo Penta parts catalog for your engine model and serial number.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I change the oil filter at every oil change?\u003c\/strong\u003e\u003cbr\u003eYes — always replace the oil filter when changing engine oil. A used filter can reintroduce contaminants into fresh oil and reduce the effectiveness of the oil change.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat if my oil looks milky after draining?\u003c\/strong\u003e\u003cbr\u003eMilky oil indicates water intrusion — a serious condition that requires immediate inspection of the cooling system, head gasket, and any potential water ingestion points before returning the engine to service.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e This is the right oil for scheduled engine oil changes on compatible Volvo Penta marine engines where the service manual specifies part number 21681794. It’s a straightforward maintenance item that pairs with a matching Volvo Penta oil filter for a complete OEM oil service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon customer questions:\u003c\/strong\u003e Customers frequently ask whether any marine engine oil will work — the answer is that Volvo Penta specifies particular oil grades and formulations by engine model, and using the wrong oil can affect engine protection and warranty standing. Always match the part number to your service manual rather than selecting by oil type alone.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43563989106724,"sku":"21681794","price":21.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/21681794.png?v=1771363250","url":"https:\/\/marisolmarine.com\/products\/volvo-penta-marine-engine-oil-21681794","provider":"Marisol Marine Company","version":"1.0","type":"link"}