Athena Progear FS 75W-90 is a fully synthetic gear oil manufactured from very high quality synthetic base stocks, highly effective extreme pressure and anti-wear additives and premium shear stable viscosity modifiers. Athena Progear FS 75W-90 offers unsurpassed load carrying capacity, which is essential for shock load, high torque and high speed service operation. The high thermal stability of the product’s components allows extended oil drain intervals to be realised and the levels of protection provided ensure maximum component protection.