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Technical Hydraulic Jack Fluid

Discussion in 'The Hokey Ass Message Board' started by blowby, Dec 23, 2019.

  1. blowby
    Joined: Dec 27, 2012
    Posts: 8,661

    blowby
    Member
    from Nicasio Ca

    OK, dumb question of the week maybe. Can I use ATF or brake fluid in a bottle jack? Don't feel like driving into town but I will rather than hurt the jack.
     
  2. oldiron 440
    Joined: Dec 12, 2018
    Posts: 3,524

    oldiron 440
    Member

    I put something other than hydraulic fluid in a new jack one time and the jack went to shit. Now ATF type F is nothing but hydraulic fluid with red dye in it so there might be a chance that it will be ok?
     
  3. Budget36
    Joined: Nov 29, 2014
    Posts: 14,394

    Budget36
    Member

    I put ATF in an old one of mine, been working a long time w/o issue. I figured we used to use ATF for power steering fluid.
     
  4. DOCTOR SATAN
    Joined: Mar 21, 2014
    Posts: 703

    DOCTOR SATAN
    Member
    from okc

    I have used hydraulic brake fluid....
     
  5. Beanscoot
    Joined: May 14, 2008
    Posts: 3,310

    Beanscoot
    Member

    I would think any oil of similar viscosity will be fine, but definitely not brake fluid - it's a different family of fluid (it's water soluble, even). Brake fluid will not mix with the remaining oil, and of course absorbs moisture from the air, promoting rust.
    So it will work in a pinch, but is bad for the longevity of your jack.
     
    ClayMart and Boneyard51 like this.
  6. Boneyard51
    Joined: Dec 10, 2017
    Posts: 6,549

    Boneyard51
    Member

    Yep, most anything but brake fluid. Engine oil works good, too. What happens most of the time is, when you have to add fluid to a Jack, it means it has developed a leak. So the seals are already damaged. So they are on their way out any way, no matter what fluid you put in it. That’s why people blame a certain fluid as causing damage to their Jack. But sometimes you can buy some time!








    Bones
     
    Last edited: Dec 23, 2019
  7. oldcootnco
    Joined: Jun 10, 2010
    Posts: 67

    oldcootnco
    Member

    I had good luck with power steering fluid.
     

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