Motul 20L GEAR 300 LS Transmission Oil 75W90

When your drivetrain is under constant load—whether on the street, track, or in competitive motorsports—you need a fluid that can handle more than just basic lubrication. This Motul high-performance synthetic gear oil is engineered specifically for modern performance vehicles equipped with limited slip differentials and demanding transmission setups.

Built using advanced synthetic ester technology, this fluid delivers exceptional resistance to heat, pressure, and shear, making it ideal for track use, rally applications, high-performance street builds, and even electric vehicle transmissions. It’s designed to perform in hypoid differentials with limited slip systems, gearboxes with integrated LSD units, synchronized and non-synchronized transmissions, and transfer cases operating under extreme conditions.

One of the key advantages of this formula is its integrated friction modifier, which helps eliminate chatter and noise commonly associated with limited slip differentials. This results in smoother engagement, better drivability, and more consistent performance under load.

Compared to traditional 75W-140 gear oils, this Motul fluid is optimized to improve drivetrain efficiency by reducing internal drag. That means less resistance, better power transfer, and smoother operation—without sacrificing protection. Its high viscosity index ensures stability across a wide temperature range, while its low-temperature flow characteristics make cold starts and gear changes noticeably smoother.

This is the type of fluid you run when you want confidence in your drivetrain—whether you're pushing hard on a back road, dialing in your setup at the track, or maintaining a high-performance build.

Not sure if this is the correct fluid or how much your vehicle requires? Use our chat feature and our team can help verify the right Motul fluid and capacity for your specific application.