Athena Progear FS 75W-85 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-85 offers improved fuel saving benefits combined with unsurpassed load carrying capacity while the high thermal stability of the products components allows extended oil drain intervals to be realised. The levels of protection provided ensure maximum component durability.