Alright, somehow my H3's PS reservoir cap came loose and lots of PS fluid got flushed onto engine bay.

My question is when topping up, which PS fluid is safe to use because I do not know if it had synthetic PS fluid or non-synthetic?

Thanks in advance

 

Use what it says in your owners manual

 

Thanx. owners manual says Power Steering System GM Power Steering Fluid (GM Part No. U.S. 89021184, in Canada 89021186).
When I called dealership they said part numbers have been revised many a times. They had two part #s for h3 - one for h3 with 16oz reservoir canister and the other one for h3 with 32 oz canister and he was not sure which one I needed. They were not sure if they are same PS fluids. Confused and calling other dealership now...

 

This is what I have used on all 7 of our H3/H3Ts without issue.

Prestone - Full-Synthetic Power Steering Fluid for American Vehicles

 

great. I was able to get my hands on 'Lucas PS fluid with conditioner' 16oz from nearby. Says: for all PS systems even Honda. I haven't opened/used it yet.

I can get 'Royal purple PS fluid Max EZ' or 'Prestone PS fluid for American cars' if any of them is better that Lucas and return Lucus.

 

Lucas PS fluid with conditioner will work just fine too!

I use that in our Excursion tow rig.