Designed to provide the highest degree of protection and greatest efficiency for your drivetrain. Red Line provides a complete line of drivetrain lubricants which are optimized for differential, transmission, or transaxle use over a wide range of temperatures.
RED LINE SYNTHETIC GEAR OIL BENEFIT SUMMARY:
Provides the greatest gear protection available
Reduces differential and gearbox temperatures
Increases differential and gearbox durability
Rapid lubrication even in very cold weather
Improves shifting in manual transmissions
Provides improved drivetrain efficiency
Prevents foaming even at high speeds
Low corrosiveness reduces synchronizer wear
Stable even at elevated temperatures
Highest film strength available
Can be used in limited-slip and regular differentials
Suitable for competition and street use
Compatible with petroleum and other synthetics
Compatible with seals designed for petroleum
Satisfies requirements calling for API GL-5 and GL-6
Allows extended drains in non-warranty vehicles
Red Line 75W90 Gear Oil - the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5.
Red Line 75W90 NS - a GL-5 which does not contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.