Motul Gear 300 75W90 1L Synthetic Gear Oil — 100% Synthetic, High-Performance EP Protection

Designed for racing and spirited road use, Motul Gear 300 combines 100% synthetic esters with advanced extreme-pressure chemistry to deliver stable viscosity, exceptional wear protection, and smooth shifting across a wide temperature range. This 1-liter pack is aimed at drivers and mechanics who need reliable gear lubrication for synchronized and non-synchronized gearboxes, hypoid differentials (non-LSD), and transfer cases without limited-slip systems.

How does Motul Gear 300 perform under high loads and heat?

Motul Gear 300 maintains film strength and resists viscosity breakdown even when gears are exposed to heavy torque and high operating temperatures. Its formulation preserves an SAE 90-like viscosity at elevated temperatures, helping to prevent metal-to-metal contact and extend component life.

• 100% synthetic ester base for thermal and oxidative stability
• Extreme-pressure additives to resist shock loading and gear scuffing
• Proven to retain viscosity after long shear stress (KRL shear resistance)

Will this oil help shifting feel and cold starts?

Yes—the low-temperature flow properties of Motul Gear 300 improve gear engagement in cold conditions, making shifting smoother and reducing resistance on initial start-up. Drivers will notice crisper shifts at low temperatures while still enjoying robust protection when the drivetrain warms up.

• Good low-temperature fluidity for easier cold shifting
• Balanced additive package supports synchronized gearboxes and brass synchros
• Reduces shift effort without compromising high-temp performance

Is this suitable for my differential, transfer case, or racing gearbox?

Motul Gear 300 is formulated for a broad range of gearbox applications that do not require limited-slip friction characteristics. It is particularly suited to hypoid differentials (non-LSD), transfer cases, manual transmissions, and reduction gears used in track or aggressive driving scenarios.

• Compatible with synchronized and non-synchronized transmissions
• Not intended for limited-slip differential applications requiring friction modifiers
• Recommended for high-performance and racing drivetrain systems where GL-4/GL-5 protection is specified

How does Motul protect internal gearbox components and materials?

The oil includes corrosion inhibitors and anti-foam agents to maintain clean, stable lubrication and prevent emulsification. It is formulated to be safe for yellow metals like brass used in synchros while delivering anti-wear benefits to steel gear surfaces.

• Safe on brass synchros and modern gearbox materials
• Anti-corrosion and anti-foam additives support long-term reliability
• Designed to minimize gear noise through robust film strength

Who is this for? Motul Gear 300 75W90 is aimed at enthusiasts, race teams, and technicians who demand durable, high-performance lubrication for manual gearboxes and non-LSD differentials. If you need a synthetic oil that handles extreme pressure, preserves viscosity under shear, and improves shift feel in cold conditions while being compatible with common gearbox materials, this product is a fit. Always check your vehicle manufacturer’s specifications before switching lubricants and confirm GL-4/GL-5 suitability for your application.