reduction gearbox oil 1lProtect Your Audi e tron Front and Rear Axles Regular oil changes for the front and rear axles of your Audi e tron are essential to maintain performance and prevent costly damage. These high performance electric drive units rely on premium gear oil for smooth operation and long lasting durability. Over time, axle oil can degrade due to heat, friction, and metal particle contamination, which may cause: Increased wear on gears and bearings Risk of