Motul's GEAR 300 line is designed for racing gear boxes and are what you need if you are serious about going fast. This synthetic gear oil was designed for extreme pressure and is more resistant at higher temperatures. Motul uses a friction modifier to avoid a noisy or dragging limited slip. Although this oil was designed to endure high temperature it is also very smooth shifting and fluid when the gear box is cold. This can be used with any type of seal as well as yellow material used in some gearboxes.