Is synthetic H-Zol compatible with regular mineral based hydraulic fluid?
by Robert Sanborn on Thu, Aug 10, 2006, who was a member of the STLE Society of Tribologists and Lubrication Engineers for 15 years.
**Yes, H-Zol is compatible with all hydraulic base oils except glycol hydraulic fluids. H-Zol is not compatible with water based glycols as they are not soluble with H-Zol (will not mix properly) **