From what I understand you have 2 fluids in the system the hydraulic oil is 30w , I went to Napa and got A32 hydraulic oil, I think the only difference is it has anti foaming agent. Been working good for me so far. That goes into the power steering reservoir.
on the steering gear box there is a vent on the top side of it, that takes 80w90 oil
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website like our supporting vendors. Their ads help keep Steel Soldiers going. Please consider disabling your ad blockers for the site. Thanks!