{"product_id":"star-brite-hypoid-90w-lower-unit-gear-lube-1-qt-marine-gl-5-api-mt-1-anti-wear-corrosion-protection","title":"STAR BRITE Hypoid 90W Lower Unit Gear Lube — 1 qt Marine GL-5 API MT-1, Anti-Wear Corrosion Protection","description":"\u003cp\u003e\u003cstrong\u003eSTAR BRITE Hypoid 90W Lower Unit Gear Lube is a marine-grade, API GL-5 hypoid gear oil engineered to protect outboard and stern drive lower units from wear, rust, and corrosion in demanding saltwater and freshwater environments.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for boats with mechanical shift systems, this 90W gear lube combines high-pressure hypoid additives with rust and corrosion inhibitors to extend gear life and preserve performance. It meets or exceeds OEM and military specifications (API MT-1, GL-5, SAE J2360, MIL-L-2105E) so it’s compatible with major manufacturers including Mercury, Mercruiser, Johnson, Evinrude, OMC, Force, Mariner, Nissan, Suzuki, Yamaha and Volvo. Use with the Star brite Lower Unit Quart Pump (027400) for clean, accurate filling, and always follow local disposal regulations for used lubricant.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this gear lube protect lower units under heavy load?\u003c\/h3\u003e\n\n\u003cp\u003eHypoid 90W is formulated for high-pressure contact in hypoid gear sets, reducing metal-to-metal friction and minimizing tooth fatigue. Anti-wear additives form a protective film on gear surfaces to resist scuffing under shock loads, while detergents help keep contaminants suspended.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAPI GL-5 additive package for extreme pressure protection\u003c\/li\u003e\n  \u003cli\u003eAnti-wear agents reduce scoring and pitting on gear teeth\u003c\/li\u003e\n  \u003cli\u003eDetergent\/dispersant chemistry helps control varnish and sludge\u003c\/li\u003e\n  \u003cli\u003eMaintains viscosity under thermal stress for consistent film strength\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this lubricant work with my outboard or stern drive brand?\u003c\/h3\u003e\n\n\u003cp\u003eYes — STAR BRITE Hypoid 90W is manufactured to meet common OEM specs and is approved for use in many popular marine drives. It’s suitable where API GL-5 and API MT-1 service levels are specified and is formulated to be warranty-safe when used according to manufacturer guidelines.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with Mercury, Mercruiser, Johnson, Evinrude and OMC systems\u003c\/li\u003e\n  \u003cli\u003eAcceptable for Nissan, Suzuki, Yamaha and Volvo lower units requiring GL-5\u003c\/li\u003e\n  \u003cli\u003eDesigned to comply with manufacturer warranty requirements when used properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I apply and dispose of the gear lube?\u003c\/h3\u003e\n\n\u003cp\u003eFill lower units using the recommended Star brite Lower Unit Quart Pump (027400) for tidy, controlled dispensing. Change intervals depend on hours, water type and manufacturer schedules — always inspect oil for water, metal particles, or milky appearance before reuse and follow local laws when disposing of used oil.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eUse Star brite pump model 027400 for neat, accurate filling\u003c\/li\u003e\n  \u003cli\u003eInspect drained oil for contamination and metal shavings\u003c\/li\u003e\n  \u003cli\u003eStore and dispose of used oil at approved collection centers per regulations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat technical standards and performance claims does this product meet?\u003c\/h3\u003e\n\n\u003cp\u003eFormulated to satisfy rigorous marine and military specifications, this gear lube provides documented performance for hypoid gear protection and corrosion resistance. It’s engineered to deliver reliable service across a broad range of operating conditions without invalidating OEM warranties when used as directed.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMeets API GL-5 and API MT-1 performance levels\u003c\/li\u003e\n  \u003cli\u003eConforms to SAE J2360 and MIL-L-2105E requirements\u003c\/li\u003e\n  \u003cli\u003eEngineered for marine environments with rust and corrosion inhibitors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: STAR BRITE Hypoid 90W Lower Unit Gear Lube is intended for boat owners, professional marine technicians and repair shops who service outboard motors and stern drives with mechanical shifting. It’s a strong choice for operators seeking a proven, specification-compliant lubricant that handles extreme-pressure gear contact, protects against saltwater corrosion, and fits the servicing recommendations of major marine engine manufacturers. If you want an easy-to-apply, warranty-safe gear oil that supports long-term drivetrain reliability, this formulation is designed for your needs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is STAR BRITE Hypoid 90W safe for my Yamaha lower unit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it meets API GL-5 and is compatible with Yamaha lower units that specify GL-5 or API MT-1. Follow Yamaha’s service recommendations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this oil in saltwater environments?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — formulated with rust and corrosion inhibitors for saltwater use, but inspect seals and drain oil regularly for contamination.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"STAR BRITE","offers":[{"title":"Default Title","offer_id":67591870578873,"sku":"B002IV6IVO","price":60.74,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/star-brite-hypoid-90w-front-quart.jpg?v=1790559582","url":"https:\/\/redleafauto.ca\/products\/star-brite-hypoid-90w-lower-unit-gear-lube-1-qt-marine-gl-5-api-mt-1-anti-wear-corrosion-protection","provider":"Redleaf Auto","version":"1.0","type":"link"}