Power steering fluid is the hydraulic fluid that flows through a vehicle's power steering system. The fluid provides the transfer of energy from one hydraulic cylinder to another. By utilising on the hydraulic power, the steering of the vehicle will be made easier. Depending on the mileage recommended by the car manufacturer, draining or flushing out of the current power-steering fluid and then adding fresh power steering fluid is required. Hard vehicle steering, pump noise and deterioration of the power steering rack are some problems that may occur power steering fluid is not maintained at adequate level.