Hydraulic Fluid in Jack?

/ Hydraulic Fluid in Jack? #1  

sandybeach

Bronze Member
Joined
Apr 14, 2012
Messages
68
Location
Whidbey Island,WA
Tractor
Branson 3510H
Is hydraulic fluid the appropriate oil for jacks?

I have some jacks that are 30+ years old.
jack-ani01.gif
A couple of them don't seem to have the lift-per-stroke they used to have. I'm referring to 12-ton and 20-ton jacks used to lift houses for foundation repairs and for setting up and moving mobile homes. And a light-duty floor jack. They - and I - were pretty good back then. There's no hope for me, but I hope the jacks can be rejuvenated with topping off of the fluid. Failing that, I guess they'll need new seals. After all, I want my Mrs. to get top $ at my estate sale.
 
/ Hydraulic Fluid in Jack? #2  
Autozone, NAPA, ETC sell an oil called Jack oil for hydraulic jacks.

I have also used 10 W oil.
 

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