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Smooth Shifting with Red Line MT-90

Red Line Oil MT-90 75W90 is the gold standard for manual transmissions requiring a GL-4 gear oil. Designed specifically to improve shift quality in both cold and hot temperatures, this synthetic lubricant is a favorite among performance enthusiasts and daily drivers alike. Its unique chemistry provides the perfect balance of friction reduction and synchronizer protection.

Why Choose MT-90?

• Enhanced Shift Feel: Specifically formulated to provide smoother gear changes in manual transmissions.
• GL-4 Protection: Safe for yellow metals like brass and bronze found in synchros.
• Thermal Stability: Resists breakdown under high-stress driving conditions.
• Synthetic Performance: Superior flow characteristics compared to conventional mineral-based oils.

MT-90 is engineered to reduce gear noise and provide long-lasting protection for your transmission internals. By maintaining a stable viscosity, it ensures that your transmission remains responsive regardless of the operating environment. If you are experiencing notchy shifts or want to prolong the life of your gearbox, this synthetic fluid is the ideal upgrade. Trust in the quality of Red Line Oil to keep your vehicle performing at its best. Find all your essential automotive fluids and maintenance supplies at GGCRACING.