MT-90 75W90 GL-4, qt - Red Line Synthetic Oil

Specifications

• Manufacturer: Red Line Synthetic Oil
• Model Number: 50304
• Product Type: Manual Transmission Lubricant
• Viscosity Grade: SAE 75W90
• API Service Classification: GL-4
• Volume: 1 Quart (qt)
• Weight: 26.04 lbs

Key Features

• Full Synthetic Formula: Engineered with synthetic base stocks for superior thermal stability and wear protection.
• GL-4 Specific Formulation: Designed to protect yellow metal components (like brass and bronze synchronizers) often found in manual transmissions without the corrosive effects associated with some GL-5 lubricants.
• Optimized Viscosity: Features a 75W90 multi-grade viscosity to ensure effective lubrication across a wide range of operating temperatures.
• Shear Stability: Resists viscosity breakdown under high stress and extreme operating conditions.
• Low Friction Modifiers: Contains additives that reduce friction, promoting smoother gear changes and decreased component wear.

Applications

• Manual Transmissions: Ideal for a wide array of manual gearboxes requiring a GL-4 lubricant.
• Transaxles: Suitable for combined transmission and differential units in front-wheel-drive vehicles or specific performance setups.
• Classic and Performance Vehicles: Recommended for vehicles with sensitive yellow metal synchronizers that benefit from GL-4 protection.
• Asian and European Vehicles: Frequently specified for many manual transmissions in imported passenger cars and light trucks.
• Racing and High-Performance Use: Provides robust protection and improved shift feel under demanding conditions.

Benefits

• Enhanced Gear Protection: The synthetic formula delivers superior film strength, effectively protecting gears and bearings from wear and scuffing, extending the lifespan of transmission components.
• Smoother Shifting Performance: Optimized friction characteristics reduce gear notchiness, facilitating easier and quicker shifts, especially from a cold start.
• Prevents Synchronizer Wear: Specifically formulated for GL-4 requirements, it safeguards sensitive yellow metal synchronizers from corrosion and premature wear, which can be an issue with GL-5 fluids.
• Consistent Lubrication: Maintains stable viscosity and performance across a broad temperature range, ensuring reliable operation in diverse driving environments.
• Reduced Operating Temperatures: High-quality synthetic base oils help dissipate heat more efficiently, contributing to lower transmission temperatures and improved durability.
• Improved Efficiency: Reduces parasitic drag within the transmission, potentially leading to minor improvements in fuel economy and power delivery.