This product is a 1 liter bottle of Genuine Porsche Gear Oil 75W90. It is used for lubricating and protecting gears in Porsche vehicles. The oil has a viscosity rating of 75W90, indicating its thickness and ability to flow at different temperatures. This high-quality gear oil is specifically designed for use in Porsche vehicles and meets all manufacturer specifications. It is recommended for use in both manual and automatic transmissions, as well as differentials. This product is an essential component for maintaining the performance and longevity of Porsche vehicles.