Power Steering Flush
Power steering fluid is an oil formulated for use in power steering systems; it reduces the effort required to steer a vehicle. The power steering system uses a pump driven by the engine to generate pressure by compressing the fluid.
The power steering system should be flushed every second year or every 30,000 miles. Manufacturers may specify particular types of power steering fluid to be used; consult your owners manual for more information on the correct fluid to use.