Zento Oil GearMax SAE 85W-140 is a premium heavy-duty gear oil specifically engineered for hypoid gear sets, differentials, and final drives operating under extreme conditions. Developed with advanced formulations from San Diego, USA, and manufactured in Malaysia, GearMax ensures durable lubrication and robust protection against high loads and thermal stress.
With its heavy 85W-140 viscosity profile, GearMax establishes a resilient oil film that ensures smooth operation, prevents wear, and extends the service life of critical drivetrain components.
Key Performance Features
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Superior Extreme Pressure (EP) Protection: Formulated with advanced EP additives to prevent gear scuffing and pitting, protecting metal surfaces even under severe shock-loading conditions.
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Thermal & Oxidation Stability: Exceptional heat resistance prevents oil degradation, maintaining stable viscosity even when axles operate continuously at high intensities.
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Quiet & Smooth Operation: Enhances the performance of planetary gears and differentials, significantly reducing gear whine and mechanical noise.
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Anti-Rust & Foam Control: Prevents chemical corrosion within the axle housing and controls foam formation, ensuring a continuous lubricating film reaches every gear tooth.
Recommended Applications
Zento Oil GearMax is the primary choice for systems requiring API GL-5 performance standards:
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Truck & Bus Axles: Front and rear axles of heavy-duty trucks, semi-trailers, and long-haul transport vehicles.
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Heavy Equipment Drivetrains: Differentials and final drives of excavators, bulldozers, and dump trucks operating in construction and mining sites.
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Heavy-Duty Transmissions: Any gear system requiring high extreme-pressure capabilities and SAE 85W-140 viscosity.
Technical Specifications (TDS)
| Property | Standard / Value |
| SAE Viscosity Grade | 85W-140 |
| Performance Standard | API GL-5 |
| Formulation Technology | X’CEL TRAD, San Diego, USA |
| Composition | Premium Base Oil & Imported Additives |
| Manufacturing Location | Enerlube Group SDN BHD, Malaysia |
Proven Quality & Origin
Manufactured at the Enerlube Group SDN BHD facility in Malaysia, this product is backed by over 30 years of industry expertise. The production process is ISO 9001 Certified and accredited by UKAS (United Kingdom). By committing to 100% Virgin Base Oils, Zento Oil ensures maximum efficiency and absolute durability for your heavy-duty machinery.
👉 Learn more about our manufacturing capabilities here:
Enerlube Group SDN BHD: Biểu Tượng Chất Lượng Từ Nhà Máy Sản Xuất Dầu Nhờn Hiện Đại Tại Malaysia
Tim –
Could not ask for a better product. This one is amazing