Are Brake Fluid and Power Steering Fluid the Same?

[OLincoln]

Brake fluid and power steering fluid are not the same. Brake fluid, also known as hydraulic brake fluid, is the liquid medium that transmits braking pressure in a vehicle's hydraulic braking system. Power steering fluid, also referred to as steering fluid or steering oil, is the hydraulic oil used in the steering system to transmit hydraulic pressure. Brake fluid has characteristics such as good viscosity-temperature performance, low water absorption, excellent low-temperature fluidity, oxidation resistance, rubber compatibility, low freezing point, high boiling point, and resistance to vapor lock at high temperatures. It undergoes minimal quality changes during vehicle use and does not cause corrosion to metal or rubber components. In contrast, power steering fluid has higher viscosity, poor fluidity, a distinct odor, and some corrosive properties.