{"title":"Mercury Outboard 25W-40 Synthetic Oil","description":"\u003cp\u003eMercury 25W-40 synthetic blend was formulated for the world’s first and only supercharged and intercooled outboard engine.\u003c\/p\u003e\n\u003cp\u003eThe unmatched torque and acceleration of the Mercury Verado engine require maximum protection found in this well-balanced combination of today’s highest quality synthetic stocks. Mercury 25W-40 Synthetic Blend Outboard Oil meets the stringent marine operational requirements of all of Mercury’s new 4- and 6-cylinder models. First in class for all FC-W durability test properties with industry-leading internal marine engine corrosion protection. Why is using 25W-40 Mercury 4-stroke outboard oil so important? The marine environment is one of the most demanding environments in which an engine can operate. Outboard engines are often used for extended periods at wide-open throttle, harsh saltwater, and intense UV sunlight. Then, Mercury outboards often sit in storage over the off-season, in many cases, without any use. Focusing on these demands, the 10w-30 Mercury 4-stroke is engineered for the unique needs of marine engines and rigorously tested to meet high standards, protect your Mercury outboard, and provide many years of engine life.\u003c\/p\u003e\n\u003cp\u003e25W-40 Mercury 4-stroke oil was specifically formulated and developed to meet the advanced needs of synthetic outboard engines.\u003c\/p\u003e","products":[{"product_id":"blackstone-laboratories-oil-analysis-kit-engine-or-transmission-oil-testing","title":"Blackstone Laboratories - Oil Analysis Kit - Engine or Transmission Oil Testing","description":"\u003cp\u003e\u003cstrong\u003eBlackstone Laboratories - Oil Analysis Kit - Engine \u0026amp; Transmission Oil Testing \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003ePartsVu has partnered with Blackstone Labratories to give you the opportunity to know exactly how your engine, transmission, gear set, or generator is performing right now, through oil analysis. \u003c\/p\u003e \u003cp\u003eYou will receive everything you need to ship an oil sample to the professionals at Blackstone. The lab report will indicate if oil change intervals are on time, if there are contaminants like water, coolant, or salt present, and analyze a full spectrum of metals that might identifiy premature engine wear before it results in a costly or dangerous failure.\u003c\/p\u003e \u003cp\u003eThese oil sample kits can be used with inboard, outboard, gas, and diesel engines. The kits come complete with the following:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSample Bottle\u003c\/li\u003e \u003cli\u003ePlastic Bag \u0026amp; Absorbent Mat\u003c\/li\u003e \u003cli\u003eExternal Contaminent Bottle\u003c\/li\u003e \u003cli\u003ePrepaid Shipping Label to send the oil sample back to Blackstone Labs\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSimply collect a small sample, fill out the sample card and drop the kit in the mailbox. Once Blackstone receives the oil sample, in a few days you will receive an email with the test results and a simplified breakdown of what the results mean. \u003c\/p\u003e \u003cp\u003eBlackstone will archive your sample and it can be used for future testing to further determine how your boat is performing over time.\u003c\/p\u003e","brand":"PartsVu","offers":[{"title":"Default Title","offer_id":45626460274979,"sku":"PVA00001","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/blackstone1.jpg?v=1698778132"},{"product_id":"mercury-synthetic-blend-4-stroke-25w-40-marine-oil-gallon-92-8m0078630","title":"Mercury – SAE 25W-40 Synthetic 4-Stroke Marine Oil, 1 Gallon | Lubrication | 92-8M0078630","description":"\u003cp data-start=\"0\" data-end=\"89\"\u003eMercury – SAE 25W-40 Synthetic 4-Stroke Marine Oil, 1 Gallon | Lubrication | 92-8M0078630\u003c\/p\u003e\n\u003chr data-start=\"91\" data-end=\"94\"\u003e\n\u003ch3 data-start=\"96\" data-end=\"110\"\u003eOverview\u003c\/h3\u003e\n\u003cp data-start=\"111\" data-end=\"637\"\u003eFour-stroke marine engines don’t get an easy break. They idle for long stretches, jump straight into hard throttle, and spend their whole life in heat and humidity. That’s why the oil you pick matters. This 25W-40 synthetic blend is the kind of oil most mechanics stick with because it hangs onto its thickness, keeps metal parts coated on cold starts, and does a solid job fighting the corrosion that sneaks into every marine engine. If you want your motor to stay strong season after season, this is the kind of oil you run.\u003c\/p\u003e\n\u003chr data-start=\"639\" data-end=\"642\"\u003e\n\u003ch3 data-start=\"644\" data-end=\"662\"\u003eKey Features\u003c\/h3\u003e\n\u003cp data-start=\"663\" data-end=\"1082\"\u003e • \u003cstrong data-start=\"666\" data-end=\"700\"\u003eFor Any 4-Stroke Marine Engine\u003c\/strong\u003e – Outboards, sterndrives, inboards—they all run well on it.\u003cbr data-start=\"760\" data-end=\"763\"\u003e • \u003cstrong data-start=\"766\" data-end=\"794\"\u003eSynthetic Marine Formula\u003c\/strong\u003e – Built to handle salt, heat, and long run times.\u003cbr data-start=\"844\" data-end=\"847\"\u003e • \u003cstrong data-start=\"850\" data-end=\"880\"\u003eHolds Viscosity Under Load\u003c\/strong\u003e – Doesn’t thin out when things get hot.\u003cbr data-start=\"920\" data-end=\"923\"\u003e • \u003cstrong data-start=\"926\" data-end=\"943\"\u003e25W-40 Weight\u003c\/strong\u003e – A favorite viscosity for many Mercury four-strokes.\u003cbr data-start=\"997\" data-end=\"1000\"\u003e • \u003cstrong data-start=\"1003\" data-end=\"1019\"\u003e1-Gallon Jug\u003c\/strong\u003e – Enough to handle a full oil change on most mid-size engines.\u003c\/p\u003e\n\u003chr data-start=\"1084\" data-end=\"1087\"\u003e\n\u003ch3 data-start=\"1089\" data-end=\"1122\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h3\u003e\n\u003cp data-start=\"1123\" data-end=\"1246\"\u003e • 4-stroke outboards\u003cbr data-start=\"1144\" data-end=\"1147\"\u003e • MerCruiser sterndrives\u003cbr data-start=\"1172\" data-end=\"1175\"\u003e • Inboard 4-stroke engines\u003cbr data-start=\"1202\" data-end=\"1205\"\u003e • FC-W and FC-W catalyst-rated systems\u003c\/p\u003e\n\u003chr data-start=\"1248\" data-end=\"1251\"\u003e\n\u003ch3 data-start=\"1253\" data-end=\"1291\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/h3\u003e\n\u003cp data-start=\"1292\" data-end=\"1720\"\u003eMost motors feel noticeably smoother once they’re running on fresh 25W-40. Idle settles down, cold starts don’t sound as harsh, and the engine feels a bit more confident when you push the throttle forward. The oil holds up well over long days, so you don’t get that thin, noisy feel older oil can cause. It also keeps varnish and sludge from building up, which makes life easier when you’re maintaining the engine down the road.\u003c\/p\u003e\n\u003chr data-start=\"1722\" data-end=\"1725\"\u003e\n\u003ch3 data-start=\"1727\" data-end=\"1744\"\u003eWhy Buy OEM\u003c\/h3\u003e\n\u003cp data-start=\"1745\" data-end=\"2045\"\u003eMercury blends this oil for the exact kind of punishment marine engines deal with—heat under the cowling, moisture in the air, long idle cycles, and quick bursts to high RPM. Automotive oils simply aren’t built for that. With OEM oil, you know you’re giving the engine what it was designed to run on.\u003c\/p\u003e\n\u003chr data-start=\"2047\" data-end=\"2050\"\u003e\n\u003ch3 data-start=\"2052\" data-end=\"2061\"\u003eFAQ\u003c\/h3\u003e\n\u003cp data-start=\"2062\" data-end=\"2215\"\u003e\u003cstrong data-start=\"2062\" data-end=\"2107\"\u003eQ1: How often should this oil be changed?\u003c\/strong\u003e\u003cbr data-start=\"2107\" data-end=\"2110\"\u003e\u003cstrong data-start=\"2110\" data-end=\"2116\"\u003eA:\u003c\/strong\u003e Most boaters change it once per season or at the recommended service hours, whichever comes first.\u003c\/p\u003e\n\u003cp data-start=\"2217\" data-end=\"2349\"\u003e\u003cstrong data-start=\"2217\" data-end=\"2261\"\u003eQ2: Is mixing this with other oils okay?\u003c\/strong\u003e\u003cbr data-start=\"2261\" data-end=\"2264\"\u003e\u003cstrong data-start=\"2264\" data-end=\"2270\"\u003eA:\u003c\/strong\u003e Better not. Keeping one formula in the engine gives you consistent protection.\u003c\/p\u003e\n\u003cp data-start=\"2351\" data-end=\"2476\"\u003e\u003cstrong data-start=\"2351\" data-end=\"2390\"\u003eQ3: Is it safe for saltwater boats?\u003c\/strong\u003e\u003cbr data-start=\"2390\" data-end=\"2393\"\u003e\u003cstrong data-start=\"2393\" data-end=\"2399\"\u003eA:\u003c\/strong\u003e Yes—its corrosion-fighting additives are meant for exactly that environment.\u003c\/p\u003e\n\u003cp data-start=\"2478\" data-end=\"2608\"\u003e\u003cstrong data-start=\"2478\" data-end=\"2513\"\u003eQ4: Will this help cold starts?\u003c\/strong\u003e\u003cbr data-start=\"2513\" data-end=\"2516\"\u003e\u003cstrong data-start=\"2516\" data-end=\"2522\"\u003eA:\u003c\/strong\u003e It usually does. The synthetic blend sticks to parts better, so starts aren’t as dry.\u003c\/p\u003e\n\u003cp data-start=\"2610\" data-end=\"2749\"\u003e\u003cstrong data-start=\"2610\" data-end=\"2643\"\u003eQ5: Why avoid automotive oil?\u003c\/strong\u003e\u003cbr data-start=\"2643\" data-end=\"2646\"\u003e\u003cstrong data-start=\"2646\" data-end=\"2652\"\u003eA:\u003c\/strong\u003e Car oil breaks down too fast in marine heat and humidity. Marine engines need something tougher.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626521747747,"sku":"92-8M0078630","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0078630_main.jpg?v=1760631362"},{"product_id":"mercury-synthetic-blend-4-stroke-25w-40-marine-oil-quart-92-8m0078629","title":"Mercury – Synthetic Blend 4-Stroke 25W-40 Marine Oil Quart | Engine Protection | 92-8M0078629","description":"\u003cp data-start=\"0\" data-end=\"107\"\u003e\u003cstrong data-start=\"0\" data-end=\"107\"\u003eMercury – Synthetic Blend 4-Stroke 25W-40 Marine Oil Quart | Engine Protection | 92-8M0078629\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"109\" data-end=\"112\"\u003e\n\u003ch3 data-start=\"114\" data-end=\"128\"\u003eOverview\u003c\/h3\u003e\n\u003cp data-start=\"129\" data-end=\"517\"\u003eMost of us end up using this oil because it just behaves the way you expect it to. It’s got a thicker, steady feel when you pour it, and once the engine warms up, it settles in nicely. I’ve run it on hot days, long no-wake stretches, quick hops between spots—you name it—and the motor stays calm. It’s the kind of thing you keep on the shelf because it never gives you a reason to switch.\u003c\/p\u003e\n\u003chr data-start=\"519\" data-end=\"522\"\u003e\n\u003ch3 data-start=\"524\" data-end=\"542\"\u003eKey Features\u003c\/h3\u003e\n\u003cp data-start=\"543\" data-end=\"948\"\u003e• \u003cstrong data-start=\"557\" data-end=\"584\"\u003eSynthetic Blend Formula\u003c\/strong\u003e – Keeps a solid protective film when the engine’s working.\u003cbr data-start=\"643\" data-end=\"646\"\u003e• \u003cstrong data-start=\"660\" data-end=\"684\"\u003e25W-40 Marine Weight\u003c\/strong\u003e – Handles the big temp swings you get on the water.\u003cbr data-start=\"736\" data-end=\"739\"\u003e• \u003cstrong data-start=\"753\" data-end=\"786\"\u003eCorrosion-Resistant Additives\u003c\/strong\u003e – Helps protect parts from salt, humidity, and storage moisture.\u003cbr data-start=\"851\" data-end=\"854\"\u003e• \u003cstrong data-start=\"868\" data-end=\"895\"\u003eClean-Burning Chemistry\u003c\/strong\u003e – Cuts down on sludge and buildup inside the engine.\u003c\/p\u003e\n\u003chr data-start=\"950\" data-end=\"953\"\u003e\n\u003ch3 data-start=\"955\" data-end=\"988\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h3\u003e\n\u003cp data-start=\"989\" data-end=\"1155\"\u003e• FourStroke engines\u003cbr data-start=\"1021\" data-end=\"1024\"\u003e• Verado platform\u003cbr data-start=\"1053\" data-end=\"1056\"\u003e• EFI and naturally aspirated systems\u003cbr data-start=\"1105\" data-end=\"1108\"\u003e• Mercury marine lubrication series\u003c\/p\u003e\n\u003chr data-start=\"1157\" data-end=\"1160\"\u003e\n\u003ch3 data-start=\"1162\" data-end=\"1200\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/h3\u003e\n\u003cp data-start=\"1201\" data-end=\"1536\"\u003eOnce this oil circulates, the motor usually sounds a little more relaxed—less chatter, less fuss. You’ll see steadier temps on long runs and fewer weird swings when you jump from idle to higher RPM. It just makes the whole setup feel smoother and less strained. By the end of the day, the engine still feels willing instead of beat up.\u003c\/p\u003e\n\u003chr data-start=\"1538\" data-end=\"1541\"\u003e\n\u003ch3 data-start=\"1543\" data-end=\"1560\"\u003eWhy Buy OEM\u003c\/h3\u003e\n\u003cp data-start=\"1561\" data-end=\"1829\"\u003eMercury mixes this oil around the engines they build, so pressure and flow stay where they’re supposed to. You avoid strange sensor readings or thin spots that show up with automotive oils. It’s a simple way to keep the motor acting the same every time you service it.\u003c\/p\u003e\n\u003chr data-start=\"1831\" data-end=\"1834\"\u003e\n\u003ch3 data-start=\"1836\" data-end=\"1845\"\u003eFAQ\u003c\/h3\u003e\n\u003cp data-start=\"1846\" data-end=\"1986\"\u003e\u003cstrong data-start=\"1846\" data-end=\"1897\"\u003e1. How do I know the oil’s ready to be changed?\u003c\/strong\u003e\u003cbr data-start=\"1897\" data-end=\"1900\"\u003eIf the engine starts sounding a little rough or the oil darkens fast, check the hours.\u003c\/p\u003e\n\u003cp data-start=\"1988\" data-end=\"2088\"\u003e\u003cstrong data-start=\"1988\" data-end=\"2033\"\u003e2. Do I need any special tools to use it?\u003c\/strong\u003e\u003cbr data-start=\"2033\" data-end=\"2036\"\u003eNope—just the usual drain pan, wrench, and a funnel.\u003c\/p\u003e\n\u003cp data-start=\"2090\" data-end=\"2205\"\u003e\u003cstrong data-start=\"2090\" data-end=\"2130\"\u003e3. Is this blend good for saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2130\" data-end=\"2133\"\u003eYes, the additives help keep things protected in salty, damp conditions.\u003c\/p\u003e\n\u003cp data-start=\"2207\" data-end=\"2329\"\u003e\u003cstrong data-start=\"2207\" data-end=\"2267\"\u003e4. Will the engine feel different after switching to it?\u003c\/strong\u003e\u003cbr data-start=\"2267\" data-end=\"2270\"\u003eA lot of folks notice steadier temps and smoother warm-ups.\u003c\/p\u003e\n\u003cp data-start=\"2331\" data-end=\"2461\"\u003e\u003cstrong data-start=\"2331\" data-end=\"2382\"\u003e5. What should I watch for if the oil gets low?\u003c\/strong\u003e\u003cbr data-start=\"2382\" data-end=\"2385\"\u003eHarsh mechanical noise or sluggish response—shut the engine down right away.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626522239267,"sku":"92-8M0078629","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0078629_main.jpg?v=1760631370"},{"product_id":"mercury-synthetic-blend-4-stroke-25w-40-marine-oil-quart-92-8m0078629-6-pack","title":"Mercury – Mercury 25W-40 4-Stroke Synthetic Blend Marine Engine Oil, 1 Quart | Marine Engine Oil | Synthetic Blend | 8M0078629","description":"\u003cp data-start=\"0\" data-end=\"144\"\u003e\u003cstrong data-start=\"0\" data-end=\"142\"\u003eMercury – Mercury 25W-40 4-Stroke Synthetic Blend Marine Engine Oil, 1 Quart | Marine Engine Oil | Synthetic Blend | 8M0078629\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"146\" data-end=\"149\"\u003e\n\u003ch3 data-start=\"151\" data-end=\"169\"\u003e\u003cstrong data-start=\"155\" data-end=\"167\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"170\" data-end=\"704\"\u003eThere’s a certain confidence you feel when your engine fires up clean and settles into that smooth, steady rhythm you’ve come to rely on. It is the kind of reassurance that matters whether you are idling past the no-wake markers at dawn or running wide and fast toward open water. Mercury 25W-40 Synthetic Blend 4-Stroke Marine Engine Oil, part number 8M0078629, plays a quiet but essential role in that peace of mind. It protects the heart of your boat so you can enjoy the ride without wondering what is happening under the cowling.\u003c\/p\u003e\n\u003chr data-start=\"706\" data-end=\"709\"\u003e\n\u003ch3 data-start=\"711\" data-end=\"733\"\u003e\u003cstrong data-start=\"715\" data-end=\"731\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"734\" data-end=\"1082\"\u003e\n\u003cli data-start=\"734\" data-end=\"791\"\u003e\n\u003cp data-start=\"736\" data-end=\"791\"\u003ePremium synthetic blend four-stroke marine engine oil\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"792\" data-end=\"863\"\u003e\n\u003cp data-start=\"794\" data-end=\"863\"\u003eDesigned to resist corrosion, varnish buildup, and sludge formation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"864\" data-end=\"926\"\u003e\n\u003cp data-start=\"866\" data-end=\"926\"\u003eStrong viscosity retention and shear protection under load\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"927\" data-end=\"965\"\u003e\n\u003cp data-start=\"929\" data-end=\"965\"\u003eTwenty-five weight forty viscosity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"966\" data-end=\"993\"\u003e\n\u003cp data-start=\"968\" data-end=\"993\"\u003eThirty-two ounce bottle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"994\" data-end=\"1034\"\u003e\n\u003cp data-start=\"996\" data-end=\"1034\"\u003eMercury Marine part number 8M0078629\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1035\" data-end=\"1082\"\u003e\n\u003cp data-start=\"1037\" data-end=\"1082\"\u003eCertified FC-W and FC-W Catalyst Compatible\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1084\" data-end=\"1087\"\u003e\n\u003ch3 data-start=\"1089\" data-end=\"1126\"\u003e\u003cstrong data-start=\"1093\" data-end=\"1124\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1127\" data-end=\"1482\"\u003e\n\u003cli data-start=\"1127\" data-end=\"1219\"\u003e\n\u003cp data-start=\"1129\" data-end=\"1219\"\u003eIdeal for Mercury and MerCruiser four-stroke outboards across multiple horsepower ranges\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1220\" data-end=\"1290\"\u003e\n\u003cp data-start=\"1222\" data-end=\"1290\"\u003eSuitable for sterndrive and inboard engines calling for 25W-40 oil\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1291\" data-end=\"1368\"\u003e\n\u003cp data-start=\"1293\" data-end=\"1368\"\u003eWorks with other major marine engine brands using four-stroke lubrication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1369\" data-end=\"1482\"\u003e\n\u003cp data-start=\"1371\" data-end=\"1482\"\u003eCommonly used on center consoles, pontoons, bass boats, offshore fishing rigs, runabouts, and family cruisers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1484\" data-end=\"1487\"\u003e\n\u003ch3 data-start=\"1489\" data-end=\"1531\"\u003e\u003cstrong data-start=\"1493\" data-end=\"1529\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1532\" data-end=\"1965\"\u003eWhen you spend time on the water, you learn quickly that not all oils behave the same. This synthetic blend is built for the harsh, damp, ever-changing world marine engines live in. The viscosity stays tight and steady, giving the moving components inside your engine a smooth, protective cushion even during long, demanding days. You feel that stability in the way your boat accelerates — clean, confident, and without hesitation.\u003c\/p\u003e\n\u003cp data-start=\"1967\" data-end=\"2574\"\u003eCorrosion protection is one of its strongest advantages. Salt air, humidity, rain, and storage conditions can all work against a marine engine, even when it is not running. This formula’s additive package helps create a defensive barrier against rust and wear, giving you a sense of trust that lasts season after season. It also helps keep varnish and sludge from building up, which means your engine stays responsive and reliable instead of bogged down by hidden deposits. The result is a cleaner-running motor, easier maintenance, and a smoother ride — all thanks to a simple quart of well-engineered oil.\u003c\/p\u003e\n\u003chr data-start=\"2576\" data-end=\"2579\"\u003e\n\u003ch3 data-start=\"2581\" data-end=\"2602\"\u003e\u003cstrong data-start=\"2585\" data-end=\"2600\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2603\" data-end=\"3206\"\u003eA genuine Mercury Marine part is built specifically for the way marine engines operate, not for the gentler environment of automotive engines. Mercury tests its oils under extreme conditions, from heavy loads to constant exposure to moisture, making sure they protect engines through every situation boaters face. Aftermarket oils may promise compatibility, but they rarely match the real-world reliability and long-term protection of true OEM products. When you choose Mercury oil, you are choosing fewer surprises, better performance, and the kind of practical dependability seasoned boaters stand by.\u003c\/p\u003e\n\u003chr data-start=\"3208\" data-end=\"3211\"\u003e\n\u003ch3 data-start=\"3213\" data-end=\"3226\"\u003e\u003cstrong data-start=\"3217\" data-end=\"3224\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3228\" data-end=\"3443\"\u003e\u003cstrong data-start=\"3228\" data-end=\"3316\"\u003eQ1: Which Mercury engines does Mercury 25W-40 Synthetic Blend Marine Engine Oil fit?\u003c\/strong\u003e\u003cbr data-start=\"3316\" data-end=\"3319\"\u003eIt fits most Mercury and MerCruiser four-stroke outboards, sterndrives, and inboards requiring twenty-five weight forty oil.\u003c\/p\u003e\n\u003cp data-start=\"3445\" data-end=\"3660\"\u003e\u003cstrong data-start=\"3445\" data-end=\"3513\"\u003eQ2: What makes this oil different from aftermarket alternatives?\u003c\/strong\u003e\u003cbr data-start=\"3513\" data-end=\"3516\"\u003eIts marine-specific additives offer stronger corrosion resistance, better viscosity stability, and superior shear protection under heavy demand.\u003c\/p\u003e\n\u003cp data-start=\"3662\" data-end=\"3856\"\u003e\u003cstrong data-start=\"3662\" data-end=\"3732\"\u003eQ3: How do I know if this is the correct replacement for my setup?\u003c\/strong\u003e\u003cbr data-start=\"3732\" data-end=\"3735\"\u003eCheck your engine manual. If it specifies twenty-five weight forty for four-stroke lubrication, this is the right choice.\u003c\/p\u003e\n\u003cp data-start=\"3858\" data-end=\"3997\"\u003e\u003cstrong data-start=\"3858\" data-end=\"3929\"\u003eQ4: Can this be used in both saltwater and freshwater environments?\u003c\/strong\u003e\u003cbr data-start=\"3929\" data-end=\"3932\"\u003eYes, it is formulated for reliable performance in either setting.\u003c\/p\u003e\n\u003cp data-start=\"3999\" data-end=\"4188\"\u003e\u003cstrong data-start=\"3999\" data-end=\"4060\"\u003eQ5: Is installation straightforward for most boat owners?\u003c\/strong\u003e\u003cbr data-start=\"4060\" data-end=\"4063\"\u003eAbsolutely. If you are comfortable performing your own oil changes, this oil pours easily and installs without complications.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":47125901705507,"sku":"PVMP0224","price":119.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/92-8m0078629_06_1.jpg?v=1701377106"},{"product_id":"mercury-synthetic-blend-4-stroke-25w-40-marine-oil-gallon-92-8m0078630-3-pack","title":"Mercury Synthetic Blend 4 Stroke 25W 40 Marine Oil - Gallon - 92-8M0078630","description":"\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury Synthetic Blend 4 Stroke 25W 40 Marine Oil - Gallon - 92-8M0078630\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etechnology specific\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e 25W-40 marine oil formulated for the \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eworld's\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e first and only supercharged and intercooled outboard engine. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe unmatched torque and acceleration of the Mercury Verado engine \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003erequires\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e maximum protection \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efound in\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e this well-balanced combination of \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etoday's\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ehighest quality\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e synthetic and mineral base stocks.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury 25W-40 Synthetic Blend Outboard Oil meets the stringent marine operational requirements of all of Mercury\/\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMerCruiser's\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e 4-stroke marine engines.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e First in class for all FC-W durability test properties with \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eindustry leading\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e internal Marine engine corrosion protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e25W-40 Synthetic Blend Oil shows significantly better shear stability and volatility, and is higher in viscosity and High Temperature High Shear (HTHS) after shear. The popular competitive formulation uses a fair amount of VM (viscosity modifier) \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewhich\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e is subject to shear, while the Mercury oil contains no VM. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAs a result, the Mercury oil will \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ehold\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e its viscosity \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efar\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e better in high-revving \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eand\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e long-running situations when the engine needs it most.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe HTHS after shear \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efollows along\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e with \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ethe\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e viscosity stability, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewhich also results\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e in improved bearing protection.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":47183286010147,"sku":"PVMP0458","price":173.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/pvm00061_1.jpg?v=1702391349"}],"url":"https:\/\/partsvu.com\/en-au\/collections\/mercury-outboard-25w-40-synthetic-oil.oembed","provider":"PartsVu","version":"1.0","type":"link"}