Other than fuel, refrigerant, and coolant, your vehicle uses other types of fluid for its hydraulic systems. One system that employs fluid is the power steering. Have you ever wondered why you're able to steer your car with just a little effort exerted on your steering wheel? The answer is the power steering fluid. This transmits hydraulic pressure to make steering your car effortless. And to ensure that you'll always enjoy a top power steering system, regular changing of this fluid must be observed. When you look at the power steering fluid, you'll see it as a clear substance (with tone of pink or orange). It's formulated using a wide range of substances, some of which are polyalphaolefin, mineral oil, glycols, and organophosphate esther. It is circulated by the steering pump, while seals and o-rings secure it within the system. Over time, however, as the power steering fluid works, it gets contaminated by debris caused by the breaking apart of other power steering hardware (i.e. seal). This is the reason the fluid has to be changed regularly. A contaminated fluid can damage the steering pump and rack, and these are expensive to replace. Preventive maintenance is the best way to avoid damage. Check your vehicle manual for the right changing interval of the power steering fluid in your car. And when the time comes, get a new bottle or pack here at Car Stuff. We have all you need to keep your car in good working order. Shop now!