{"product_id":"ultra-1plus-sae-25w-40-marine-engine-oil-4-gallon-durable","title":"ULTRA 1PLUS SAE 25W-40 Marine Engine Oil (4 Gallon) - Durable","description":"\u003cp\u003eOur review looks at the ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil and why it matters for sterndrive and outboard owners. The bottom line: this oil is for boaters who need a robust, NMMA FC-W-exceeding lubricant that balances wear protection and corrosion resistance in both fresh and saltwater. Tested to meet and surpass FC-W standards, it reduces internal friction to preserve engine life and maintain power, making it an economical choice for routine service on compatible marine engines.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceeds NMMA FC-W:\u003c\/strong\u003e Formulated to meet and surpass FC-W specifications so engines receive protection beyond the minimum marine industry standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSynthetic blend formulation:\u003c\/strong\u003e An advanced ultra synthetic blend provides a base oil and additive balance designed to improve thermal stability and performance under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-specific additives:\u003c\/strong\u003e Fortified with a precisely balanced additive package that targets corrosion and wear common to saltwater and freshwater use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriction reduction:\u003c\/strong\u003e Reduces internal friction to help maintain power output and improve long-term engine longevity when used as directed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for sterndrive and outboard:\u003c\/strong\u003e Engineered specifically for sterndrive and outboard applications and noted as FC-W Catalyst Compatible for broader compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis oil is well suited to recreational boat owners and marine technicians who service sterndrives and outboard four-stroke engines and want a product that exceeds NMMA FC-W performance. It's especially useful for those running Mercruiser and similar small to mid-displacement marine gasoline engines where a thicker 25W-40 viscosity helps at cruising temperatures.\u003c\/p\u003e\u003cp\u003eBoaters who require a different viscosity for very cold climates or who need a fully synthetic 0W or 5W product for cold starts should look elsewhere. Also, owners of engines with OEM-specific unusual lubricant requirements should verify compatibility before switching.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOffers strong wear and corrosion protection backed by testing and FC-W exceedance.\u003c\/li\u003e\n\u003cli\u003eSynthetic blend balances performance and value for regular service intervals.\u003c\/li\u003e\n\u003cli\u003eWorks well in fresh and saltwater conditions and is reported to perform in Mercruiser 3.0 L engines.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eNot a full synthetic; those needing the highest cold-start flow may prefer lower viscosity full synthetics.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003eULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e4 Gallon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViscosity grade\u003c\/td\u003e\n\u003ctd\u003eSAE 25W-40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormulation\u003c\/td\u003e\n\u003ctd\u003eUltra synthetic blend\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustry spec\u003c\/td\u003e\n\u003ctd\u003eExceeds NMMA FC-W (Catalyst Compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eSterndrive \u0026amp; outboard 4-stroke marine engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eULTRA 1PLUS 25W-40 is a sensible, value-oriented choice for sterndrive and outboard owners who need dependable wear and corrosion protection that surpasses NMMA FC-W. It balances synthetic-blend performance and cost, making it a good pick for routine maintenance when the recommended viscosity aligns with the engine maker9s guidance.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this oil suitable for saltwater use?\u003c\/strong\u003e\u003cbr\u003eYes. The additive package and testing are intended to guard against corrosion and wear in both fresh and saltwater environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this in a Mercruiser 3.0 L?\u003c\/strong\u003e\u003cbr\u003eCustomers report good compatibility with Mercruiser 3.0 L engines, but always confirm the OEM viscosity and specification requirements first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a full synthetic oil?\u003c\/strong\u003e\u003cbr\u003eNo. It is an advanced ultra synthetic blend formulated to deliver many of the benefits of synthetics while remaining cost-effective.\u003c\/p\u003e","brand":"ULTRA 1PLUS","offers":[{"title":"Default Title","offer_id":48159477203163,"sku":"B09FB2K53S","price":97.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/813ovuY5pKL._AC_SL1500.jpg?v=1768711060","url":"https:\/\/gearmusthave.com\/products\/ultra-1plus-sae-25w-40-marine-engine-oil-4-gallon-durable","provider":"GearMustHave","version":"1.0","type":"link"}