I got caught short with fluid in some bottle jacks. They had sat unused for
mny years wthout so when I got them out, they were so low on fluid that none
of them would rise by more then an inch or so. 2 12 tons and 2 3 tons.
I used leftover brake fluid in one 12 ton and trensmission fluid in one 3
ton jack because I had lttle time left. In a third 3-ton I used thread
They worked fine, but so would water I imagine for theshort time I needed
QUESTION: will those oils used hurt the jacks or seals? Or can I wait til
weekend ro get the proper oil for them? I'm away from home and won't get
back til this Monday, and I forgot to remove the fluids before leaving.
Of the 3, transmission fluid is the most similar to hydraulic jack fluid
and may even work satisfactorily indefinitely. THe cutting fluid, I'm
just guessing, will probably do no permanent damage if you drain & flush
the jack promptly. The brake fluid is the most likely to cause seal
problems. DOT 3 Brake fluid is glycerin or glycol based rather than
petroleum that is used in jack and hydraulic fluids.
The best argument against democracy is a five-minute conversation
with the average voter. (Winston Churchill)
I have had a couple of jacks that the reccommended fluid was brake
fluid. Not sure if that is true for all.
Curious question. I wish my memory was better. I had a power steering pump
that was leaking like a seive. Not having power steering fluid to run
through it, I added what I had, which was either brake fluid or tranny
fluid. The said power steering unit sealed up, and was operative until I
sold the truck. I do wish my memory was better. It would be useful in
I wouldn't be mixing glycol based brake fluid with the original jack
oil. ATF or PS fluid are fine. "white hydraulic oil" is standard in
those jacks - cutting oil likely won't hurt anything - generally just
a high sulphur petroleum oil any-way.
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