Red Line 75W90 Synthetic Transmission Fluid

We use Red Line Oil in all of our BMW PRO3 and Spec Miata race cars, as well as our customers' race cars. This is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip, and is Red Line's most popular gear oil. 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.