80W-90 gear oils, which have an important place in the maintenance of gear systems used in the automotive sector, provide high performance and long life. They are an ideal option for the proper operation of gear systems and prevention of wear. These oils, which are also frequently preferred in industrial areas, contribute to the smooth operation of machines working under heavy loads. Thanks to their high viscosity index, they demonstrate effective performance over a wide temperature range. 80W-90 oils, which have an important place among the products in the gear oils category, have a wide range of applications from maintenance of automobiles to industrial machinery.