Purpose and Specifications

MOTUL GEAR 300 75W90 is a 100% synthetic ester-based gear oil designed for high-performance manual transmissions, differentials, and gearboxes in racing vehicles, rally cars, and heavy-duty applications. It meets API GL4 and GL5 standards, ensuring compatibility with synchronized and non-synchronized systems without limited-slip differentials.

This 1L bottle delivers exceptional lubrication that cuts friction and wear, maintains a tough oil film up to 150°C for quiet operation under extreme heat, and stays fluid down to -40°C for easy cold starts and smooth shifting. Its zero-shear formula resists breakdown, providing consistent protection during shocks, heavy loads, or high speeds.

• Reduces gear lever effort for precise shifts
• Protects seals and prevents corrosion or foaming
• Ideal for gearboxes, transfer cases, and hypoid differentials

When to Use / Replace?

Use MOTUL GEAR 300 75W90 in high-load scenarios like track days, off-road raids, or daily driving in sports cars and trucks needing superior gear protection. Replace every 40,000-60,000 km or 2-3 years, or sooner if towing heavy loads or racing—follow your vehicle's manual and inspect for metal particles.

Shelf life is 5 years unopened in cool, dry storage. Users report noticeably smoother shifts and longer component life in applications from BMWs to F150 trucks.

FAQ

Q: Is this oil safe for everyday trucks and cars?
A: Yes, it's excellent for light trucks and performance cars, offering track-level protection for street use with no leaks when seals are good.

Q: Does it work in cold weather?
A: Absolutely—flows easily at -40°C, making gear shifts smooth even on freezing mornings.

Q: How often should I change it?
A: Every 40,000-60,000 km or 2-3 years for optimal performance, adjusted for your driving style.