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  1. #1

    Default John Deere Hydraulic fluid

    Quick question,, just bought a JD 770 compact tractor, looking at the manual of course the book says to use only John Deere Hydraulic fluid. I would guess that any good quality fluid would serve the same purpose. Welcome feed back.

  2. #2
    Super Star Member
    Join Date
    Aug 2001
    Posts
    12,015
    Location
    Upper Midwest USA
    Tractor
    JD 4300, JD X485 JD 4x2 Gator, JD 425, JD455

    Default Re: John Deere Hydraulic fluid

    Anyone can weigh the risk of using something else, and probably come out just fine.
    I just use the Deere oil, as it isn't much more expensive (I don't know if it is at all). In 5 years I have changed the transmission oil once. Have you calculated what you would save by buying something else?

    In my manual, it says Deere Hy-gard I believe, or its equivalent (and then gives the specs of the equivalent).

  3. #3
    Platinum Member prosperity's Avatar
    Join Date
    Aug 2000
    Posts
    689
    Location
    North Central Pennsylvania
    Tractor
    JD 2520

    Default Re: John Deere Hydraulic fluid

    My first thought....
    If you just bought your 770 new, would you need fluid for adding? If so, it is not a good idea to mix different oils.
    Second thought - fluids are very important - with my machines and vehicles I don't scrimp - not worth the savings of a couple bucks.
    But....if I had a 30 year old machine that wasn't in the best of shape and was a real leaker, I might opt for the cheap stuff.

  4. #4
    Gold Member
    Join Date
    Jun 2003
    Posts
    333
    Location
    Michigan

    Default Re: John Deere Hydraulic fluid

    Ditto the thinking of the previous posters. Service a $15k tractor with "the cheap stuff" to save maybe $20? Not worth the risk to me. Plus, I have a good dealer so I am happy to support those who support me.

  5. #5

    Default Re: John Deere Hydraulic fluid

    This was a used tractor with many hours logged, how do I now know what fluid is currently in the system. I installed the backhoe and had a hose leak so I want to top off the fluid.

  6. #6

    Join Date
    Dec 2004
    Posts
    171
    Location
    Ontario, Canada
    Tractor
    JD4310

    Default Re: John Deere Hydraulic fluid

    If you do not know what fluid is currently in the tractor, then you may not know it's quality either.

    If it were me, I would change it all and put in the recommended JD hydraulic fluid.

    Richard

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