{"product_id":"mercury-oil-85w140-92-8m0128385","title":"Mercury – Quicksilver 85W-140 Motorcycle Transmission Oil | Heavy-Duty Gear Protection | High-Viscosity Formula | 8M0128385","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Quicksilver 85W-140 Motorcycle Transmission Oil | Heavy-Duty Gear Protection | High-Viscosity Formula | 8M0128385\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s a certain reassurance that comes from riding a big V-twin — that deep, rolling pulse, the steady pull, the sense that the machine underneath you was built to work hard. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBut those engines, especially the ones with separate gear cases, demand oil that can stand up to real heat, real load, and real miles. Quicksilver 85W-140 Motorcycle Transmission Oil delivers exactly that. It’s the kind of oil you trust when you’re pushing through long stretches of highway or winding your way up mountain grades, knowing your gears are staying cool, cushioned, and ready for more.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHigh-viscosity transmission oil for large air-cooled or liquid-cooled V-twin motorcycles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for shaft drive or separate clutch\/transmission assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOffers maximum protection against wear, oxidation, and corrosion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMeets or exceeds API GL-5 \/ MT-1 and SAE J236 standards\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHelps maintain consistent performance under extreme load and heat\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePackaged in a one-quart bottle for easy, clean service\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eNot for use in wet-clutch systems\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIntended for large displacement V-twin motorcycles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWorks with both air-cooled and liquid-cooled V-twin engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSuitable for bikes that use separate gear cases or shaft drive systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with touring, cruiser, and heavy-duty long-distance motorcycles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eApproved for use without affecting manufacturer warranties\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Riders who run bigger V-twins know the pressures these engines put on their gearboxes. Heat builds fast, especially during slow climbs or heavy two-up riding. Quicksilver’s 85W-140 formula is made for exactly those conditions. The thicker viscosity creates a strong, stable film that keeps gears running smoother and quieter, even when load and temperature spike. Instead of that harsh, metallic feel some oils allow, you get a more cushioned, controlled response when shifting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe formula also resists oxidation, which helps the oil stay clean longer, avoiding the thickening and sludge that can wear gears prematurely. Corrosion protection matters just as much, especially for bikes that sit through winter or aren’t ridden daily. This oil coats internal surfaces with a protective layer that hangs on, even when the bike is stored. The result is a gearbox that feels more reliable, sounds healthier, and lasts longer — exactly what you want when your motorcycle is your escape, your weekend ritual, or your main ride.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e When you’re maintaining a machine that carries weight, heat, and torque the way a V-twin does, using a trusted, high-quality oil isn’t a luxury — it’s common sense. Quicksilver’s reputation comes from decades of engineering lubricants for marine environments where gears face brutal loads and constant exposure. That experience transfers directly into this motorcycle transmission oil. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWith strict performance standards, consistent viscosity retention, and proven durability, this Mercury Marine part number offers reliability many aftermarket oils simply can’t match. It’s a smart move for riders who want to protect their investment and avoid expensive repairs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which systems does this transmission oil fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It’s formulated for motorcycles with separate gear cases or shaft drive systems, especially large V-twin engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What sets it apart from aftermarket oils?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e The high-viscosity, extreme-pressure formula offers stronger wear protection and better resistance to heat, oxidation, and corrosion — all crucial for heavy V-twins.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I know if it’s right for my motorcycle?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e If your bike uses a separate gear case and the manufacturer recommends 85W-140 gear oil, this part number is a reliable match. It is not for wet-clutch applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Is it suitable for extreme temperatures?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. It handles both scorching climates and cooler conditions with stable viscosity and dependable performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Definitely. Changing gear oil is a simple maintenance task, and the one-quart bottle makes refilling clean and manageable.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46933879357731,"sku":"92-8M0128385","price":9.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8M0128385_Main.jpg?v=1760631384","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-oil-85w140-92-8m0128385","provider":"PartsVu","version":"1.0","type":"link"}