How should the power steering fluid levels be maintained?

Maintaining power steering fluid levels between the minimum and maximum levels is essential for ensuring the proper function of the power steering system. The fluid serves as both a hydraulic medium for steering assistance and a lubricant for the system components. Keeping the fluid within this specified range allows the power steering pump to operate efficiently and helps to avoid issues such as air being drawn into the system or insufficient lubrication, which could lead to wear and tear or even failure of the steering system.

If fluid levels were maintained only at the maximum level, this could lead to overfilling, which may result in foaming of the fluid and can cause steering difficulties. Conversely, keeping the fluid at the minimum level would risk inadequate lubrication and steering assist, potentially leading to system damage. Completely filling the reservoir can also push the fluid out of the overflow or vent, which can create a messy situation and degrade the effectiveness of the system. Therefore, the optimal operation is to ensure that the fluid resides between the minimum and maximum markings on the fluid reservoir.