Should you need to top up or check your car's power steering fluid, you'll first have to find the reservoir. This is rather simple to locate in most cars. Just pop open the hood and try to find a white or yellow bottle, with a black cap on it. Inspect the wording on the top of the cap, and it might say something like 'power steering' or 'steering fluid'. Usually, this reservoir is placed on the passenger side of the engine bay. If you need to check your power steering fluid levels, most reservoirs are transparent and feature markings on the side. When you're ready to twist open the reservoir cap and check or fill in some new fluids, be wary of dirt. Any contaminants are pretty bad if they get into contact with the power steering fluid.