What is power steering oil?
3 Answers
Power steering oil is a special fluid used in the car's power steering pump. Through hydraulic action, it can make the steering wheel lighter, similar to automatic transmission fluid, brake fluid, and shock absorber fluid. To prevent the power steering oil from becoming dirty or deteriorating, it should be replaced every 2 years or 30,000 kilometers. Precautions for using power steering oil include: 1. Power steering oil contains carcinogenic substances; if it comes into contact with the skin, it should be washed off immediately. 2. For cars equipped with hydraulic power steering systems, avoid holding the steering wheel at full lock for extended periods, as this can burn out the power steering pump over time.
I studied this not long ago. Power steering fluid is a type of hydraulic oil specifically used in the steering system to make the steering wheel lighter. You can usually see a small reservoir with a steering wheel symbol in the engine compartment—that's its tank. This fluid must withstand high pressure and temperature because the steering pump operates under extreme pressure. Many people confuse it with transmission fluid, but their compositions are entirely different. I learned this the hard way when I used incompatible fluid, resulting in strange noises from the steering system, which were resolved only after switching to the proper fluid. Also, it's important to regularly check the fluid level and color. If it turns black or gets low, steering can become very heavy and even damage the power steering pump. Repair shops generally recommend changing it every two years or 30,000 kilometers.
A veteran driver with 20 years of experience tells you, never underestimate power steering fluid. I once encountered a situation where the steering wheel suddenly became heavy, and upon inspection, it turned out to be a power steering fluid leak. This fluid is like the lifeblood of the steering system, responsible for transmitting hydraulic pressure. It allows us to turn the steering wheel with ease; without it, turning the wheel while stationary can make you break a sweat. During regular maintenance, remember to check the fluid reservoir under the hood—the level should be between the upper and lower marks, and the fluid should be clear. Different car models use different fluids, and the standards for German and Japanese cars can vary significantly. Mixing them can damage the steering system. I make it a habit to have a mechanic check the fluid condition every 30,000 kilometers. Changing the fluid costs just a little over a hundred bucks, which is much cheaper than repairing a steering pump.
