To be absolutely certain, check your owner's manual. It will list the correct fluid type and specifications. If you don't have the manual, you can also find this information:
* On a sticker under the hood: Volvo often places stickers indicating required fluids and lubricants.
* On the power steering reservoir: The reservoir itself might have markings indicating the recommended fluid.
* By contacting a Volvo dealership or authorized service center: They can tell you exactly what fluid your specific model requires.
Using the wrong fluid can damage the power steering system, leading to costly repairs. Always prioritize using the manufacturer's recommended fluid.