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#1
Hydraulics
I need to repair my floor jack, therefore must buy some hydraulic fluid and o-rings. I know from past experience that not all o-rings and fluids are equal, but have not been able to find any specifications for my particular jack. I sent some emails to some suppliers asking about this, but thus far have received no replies.
How does one determine exactly which o-rings and fluid to get? I'm only referring to materials and forumula.