Gear 300 75W90 – 1L Synthetic Ester Transmission Oil (GL-5) - Motul 105777

Get smoother, more reliable shifting with Motul Gear 300 75W90 Synthetic Ester Transmission Oil (1L), a 100% synthetic gear lubricant engineered for high-performance street cars, track builds, and racing applications. Specifically designed to meet API GL-5 standards, this ester-based oil provides extreme pressure resistance and superior anti-wear protection for manual transmissions, transfer cases, and hypoid differentials (without limited slip systems).

Developed for endurance and motorsport use, Motul Gear 300 forms an unshearable oil film even under the most extreme conditions, ensuring 0% shear loss. Its high lubricating power reduces friction and wear, extending transmission life and improving overall efficiency compared to heavier oils like 75W140.

Thanks to its special friction modifiers, Gear 300 also reduces gear noise, prevents dragging, and makes cold-weather shifting easier—perfect for Miata owners who want crisp gear changes whether on daily commutes or full-throttle track laps. Its superior temperature resistance keeps your gearbox protected under shock loads, heavy torque, and sustained high RPMs.

Compatible with all seal types and yellow metals (such as brass synchronizers found in Miata transmissions), Gear 300 is safe and effective for long-term use. This makes it the go-to choice for NA, NB, NC, and ND Miata drivers seeking maximum drivetrain reliability and racing-grade performance.

Backed by Motul’s motorsport heritage, the Gear 300 75W90 is the proven synthetic gear oil for those who push their Miata to the limit.

Technical Bulletin
Material Safety Data Sheet


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