API GL-4, API GL-5
High Performance gear oil specially designed for racing vehicle gearboxes: speed way, rally, raid… etc. and any other high loaded applications.
All mechanical transmissions synchronized or non-synchronized gearboxes, gearbox/differential, transfer boxes or hypoid differentials without limited slip system, and all transmissions systems using gears, bevel gears, stepdown gears, speed reduction boxes, propeller boxes…etc. operating under shocks, heavy loads and low revolution speed or moderate loads and high revolution speed.