Red Line MT-90 75W90 GL-4 Manual Transmission Gear Oil – 1 Quart

Red Line MT-90 75W90 GL-4 Manual Transmission Gear Oil – 1 Quart

Red Line MT-90 is a high-performance 75W90 GL-4 gear oil designed specifically for manual transmissions that require excellent shift feel and protection. Formulated with fully synthetic base stocks and balanced friction characteristics, MT-90 delivers smooth shifting—even in cold weather—while protecting synchros from wear.

Ideal for high-performance street cars and track builds, MT-90 is a favorite among enthusiasts for its ability to reduce gear noise, improve shift quality, and resist breakdown under high temperatures.

Key Features:

• 75W90 GL-4 full synthetic gear oil
• Protects brass synchros—safe for use where GL-5 fluids may cause damage
• Excellent cold-weather performance for smoother shifts
• Reduces gear noise and transmission wear
• Designed for longitudinal manual transmissions and transaxlesRecommended For:

Perfect for a wide range of import and domestic vehicles, including many classic Hondas, Nissans, Mazdas, and BMWs that specify GL-4 fluids. Always check your owner’s manual or factory service manual for exact specifications.

Volume: 1 Quart (0.946L)

Get the crisp, confident shifting you expect with the trusted performance of Red Line MT-90.