Redline Oil 75W-140 Ns Gl-5 Gear Oil - 1 Gallon

Red Line 75W140NS GL-5 Gear Oil is formulated with extreme pressure additives for superior protection, while being free from friction modifiers that would typically add slipperiness. This unique blend makes it ideal for historic, vintage, and racing applications where traditional gear oils might not perform as well.

Vintage and High-Performance Applications
Perfectly suited for older manual gearboxes, Red Line 75W140NS is a popular choice for cars and trucks from the mid-1930s to early-1950s with synchro-equipped gearboxes. It also helps improve shifting in problematic A-833 Dodge/Plymouth 4-speed transmissions (1964-1969), making it an excellent choice for restoring smoother gear engagement in vintage transmissions that have struggled with noisy or rough shifts.

Customizable Performance
When mixed with Red Line 75W90NS or MT-90, 75W140NS provides the flexibility to adjust viscosity levels for different requirements, making it a versatile option for a range of racing and performance applications. Additionally, it is commonly used in clutch-type limited-slip differentials, where users can further customize the fluid by adding a Limited Slip Friction Modifier to control slippage and maximize lock-up.

Key Benefits:

• Non-corrosive formula that is safe for use with all synchro materials, preserving the integrity of your transmission and differential components.
• Helps reduce noisy or rough shifting in vintage transmissions, ensuring smoother gear engagement.
• Customizable viscosity when mixed with 75W90NS or MT-90 for specific performance needs.
• Suitable for clutch-type limited-slip differentials, offering excellent wear protection.
• No friction modifiers, making it the ideal choice for vintage transmissions that require a balanced slipperiness for proper synchro engagement.
• Compatible with both petroleum and synthetic oils, providing flexibility and ease of use across various systems.

Red Line 75W140NS GL-5 Gear Oil offers the perfect blend of protection and performance for vintage, historic, and high-performance applications, ensuring smooth shifting, reliable performance, and enhanced durability for both manual transmissions and differentials. Whether you're restoring an old classic or racing with modern performance vehicles, this gear oil ensures optimal protection in the most demanding conditions.