Motul 75W-90 Motylgear Gear Oil 1L — Technosynthese, High-Shear Stability & EP Protection

Motul Motylgear 75W-90 is a Technosynthese gear oil engineered to improve shifting, protect gears under heavy load, and maintain stable viscosity from cold starts to high temperatures.

Built from a blend of synthetic and mineral base stocks, Motul Motylgear 75W-90 is formulated for manual gearboxes, differentials and transfer cases that demand a dependable 75W-90 lubricant. It targets noisy or hard-to-shift transmissions by preserving an oil film across temperature extremes, resisting shear, and offering anti-corrosion and anti-foam characteristics. Suitable for everyday use and moderate performance driving, this 1-liter bottle provides a versatile option for many drivetrain applications.

How does this oil make gear shifting easier in cold conditions?

Motylgear 75W-90 maintains a lower low-temperature viscosity so the gearbox moves closer to its intended grade when cold. That reduces the effort required on the shift lever and helps synchronize engagement during initial driving.

• Low-temperature fluidity for smoother cold shifts
• Improved synchronizer compatibility for synchronized gearboxes
• Formulation that prevents thickening at startup

Will it protect gears and bearings under heavy loads and shocks?

This oil includes extreme-pressure additives and reinforced base stocks to form a durable lubricating film under high loads and shock conditions. It reduces metal-to-metal contact, helping limit wear on gears, bearings and other drivetrain components during demanding use.

• Extreme-pressure chemistry for load resistance
• Anti-wear protection for gears and bearings
• Stable film strength at elevated temperatures

Does the oil keep its viscosity during long, hot operating periods?

Motul certifies that the fluid retains its 90 grade after extended shear testing, ensuring it resists thinning during prolonged high-temperature operation. That stability helps sustain oil film thickness, reduce friction, and diminish transmission noise at elevated temperatures.

• High shear stability to maintain SAE 90 grade
• Reinforced synthetic components for thermal resistance
• Consistent performance over extended service intervals

Is this oil compatible with seals, differentials and non-limited slip systems?

Formulated for broad compatibility, Motylgear 75W-90 works with common gearbox seal materials and yellow metals used in transmissions. It is suitable for hypoid differentials and transfer cases not requiring limited-slip additives, and it includes anti-corrosion and anti-foam properties for reliable operation.

• Compatible with standard gearbox seal materials
• Suitable for hypoid differentials without limited-slip needs
• Anti-corrosion and anti-foam performance for system longevity

Who is this product for? Motul Motylgear 75W-90 is aimed at drivers and technicians who need a robust, multi-use 75W-90 for manual transmissions, differentials and transfer gearboxes. It's a good match for vehicles that experience hard shifts, moderate to heavy loads, or extended operating temperatures, as well as owners seeking a balanced, long-lasting lubricant that supports both daily driving and light performance demands.