Purpose and Specifications

Motul Gear 300 LS 75W90 is a premium 100% synthetic ester-based transmission and differential fluid designed for high-performance and racing vehicles. This oil meets API GL-5 standards and delivers superior protection in extreme driving conditions.

Key Performance Features:

• Reduces friction and wear in gearboxes and limited-slip differentials
• Flows smoothly in cold weather for easier gear shifting
• Maintains thick, protective film at high temperatures (up to 100°C / 212°F)
• Minimizes shear loss—the oil stays strong even under severe stress
• Special friction modifier prevents noise and dragging in limited-slip differentials
• Improves transmission efficiency compared to heavier 75W-140 grades
• Compatible with all seal types and gearbox materials

Operating Temperature Range: Performs reliably from cold starts to sustained high-temperature track use.

When to Use / Replace?

Follow your vehicle manufacturer's recommended service intervals. For high-performance and track use, consider more frequent changes—typically every 10,000 to 15,000 km or annually, whichever comes first. Check your owner's manual for exact specifications.

Ideal Applications:

• Track and rally racing vehicles
• High-performance street cars (Subaru WRX, STI, BRZ, Toyota GR86, Lotus Elise/Exige)
• Manual transmissions with synchronized or non-synchronized gearboxes
• Hypoid differentials with limited-slip systems
• Electric vehicle transmissions
• Transfer gearboxes under heavy shock loads

Storage: Store in a cool, dry place. Synthetic ester oils maintain stability for extended periods when properly sealed.

Frequently Asked Questions

Q: Can I use this in a non-limited-slip differential?
A: Yes. Motul also offers Gear 300 (non-LS) for standard differentials. The LS version includes a friction modifier for limited-slip systems but works safely in all hypoid differentials.

Q: How much do I need for a typical fluid change?
A: Most manual transmissions require 1.5 to 2 liters. Rear differentials typically need 1 to 1.5 liters. Always consult your vehicle's service manual for exact capacity.

Q: Is this oil suitable for street driving?
A: Absolutely. While engineered for racing, this synthetic ester oil excels in both street and track environments, offering smooth shifting and long-term protection for daily drivers and weekend warriors alike.