Hyd Steering Fluid - What do I need to use?

This post is similar to DFreedoms post. I need to add some hyd steering fluid to my boat. Is there a particular brand of type hydraulic fluid that I need to use?

18’ Hewes Bayfisher/115 4 Stroke Yamaha/6’Powerpole, etc

any brand is okay, but I strongly recommend using only fluid labeled for hydraulic steering
sea star, marpac, etc

www.teamcharlestonmarine.com
www.joinrfa.org

thank you.

18’ Hewes Bayfisher/115 4 Stroke Yamaha/6’Powerpole, etc