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  1. #1

    Join Date
    Dec 2004
    Posts
    275
    Location
    Newberg, Oregon, USA
    Tractor
    JD 790

    Default Substitute for JDM J20D Transaxle/Hydraulic oil?

    The JD 790 manual specifies JDM J20D Low-Viscosity HyGard oil for hte transmission/hydraulic oil. Is there another product that is as good or better?

    Is this a heavy gear oil, or is it like engine oil? The manual doesn't give any other specs for it. [img]/forums/images/graemlins/ooo.gif[/img]

  2. #2
    Gold Member
    Join Date
    Jun 2003
    Posts
    333
    Location
    Michigan

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    The only other product John deere typically recommends is J20C which is regular John Deere HyGard. The oil is thin like engine oil. Which oil to use is based on your climate as Low Vis is good to below 0 whereas regualr HyGard is better above 86 degrees F. For the front axle I run Low Vis.

  3. #3

    Join Date
    Dec 2004
    Posts
    275
    Location
    Newberg, Oregon, USA
    Tractor
    JD 790

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    I was just thinking that if there was a premium synthetic that would reduce wear and was compatible with the seals, I'd be willing to pay some extra for it. My usage of a tractor is, "sit too long betweeen usages, and run it hard for brief periods," seems like a good place for a synthetic if there was something compatible.

    I saw something at the Napa store, that was called "Premium Tractor and Hydraulic Oil," or something like that. I think it was $23+ for a 5 gal bucket, but I don't think it was anything special, did say it met JD Hygard specs.

  4. #4
    New Member
    Join Date
    May 2005
    Posts
    21
    Location
    Rome, GA
    Tractor
    John Deere 2210

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    I found on Valvoline's web site a list of specifications for all their products. Valvoline Premium Universal Tractor Fluid meets John deere J20A, J20C, J14B, J14B, J14C, J21A, and 303.

    Valvoline Spec

  5. #5

    Join Date
    Dec 2003
    Posts
    109
    Location
    Leavenworth County, Kansas
    Tractor
    Kioti D65C

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    Walmart's Supertech meets the J20C&D spec. That's what I used.

  6. #6
    Platinum Member tomnky's Avatar
    Join Date
    Jul 2003
    Posts
    806
    Location
    Berea,Kentucky
    Tractor
    Kubota BX2200

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    Chevron Synthetic All-Weather THF meets Your specifications

    Chevron Synthetic All- Weather THF

    I hope this helps!

    BTW: It is Orange in color [img]/forums/images/graemlins/grin.gif[/img] [img]/forums/images/graemlins/grin.gif[/img]

  7. #7
    Platinum Member TractorLegend's Avatar
    Join Date
    Jun 2005
    Posts
    840
    Location
    Normandy Park, WA and Randle, WA recreation property
    Tractor
    Kioti CK30HST with fel, rfm, rear blade, overhead light bar, customized grill guard and reinforced bucket with chain hooks, rear remote for 3 pt. tilt cylinder

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    Whatd this stuff cost for a five??

  8. #8
    Platinum Member tomnky's Avatar
    Join Date
    Jul 2003
    Posts
    806
    Location
    Berea,Kentucky
    Tractor
    Kubota BX2200

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    According to poster Rat, it is a little cheaper than kubota Super UDT, which costs around $35.00 taxes included for a 2 1/2 gallon jug.

    I would think a 5 gallon pail would be not hardly double that. [img]/forums/images/graemlins/grin.gif[/img]

  9. #9
    Super Member _RaT_'s Avatar
    Join Date
    Apr 2000
    Posts
    5,814
    Location
    Northern CA.
    Tractor
    Push mower, Snapper 21" 6 shovels, 2 rakes, a pick, 2 pinch bars, a post hole digger (two handle type) and 2 wheel barrows that handle like a Porsche.

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    I paid as memory serves, about 12.50 or 13 dollars a gallon or $65 for a five gallon bucket. It's orange, it doesn't have much odor and seems to do all the things it claims it can do. My climate is mild so I was less concerned about the cold weahter issue but then, I'm really bad at letting things warm up for any period of time so it's kind of like insurance.

    Oh yeah, the 5 gallon buckets are pretty too available in a rich blue hue with a nice spout and breather hole. It's a keeper for other things.

  10. #10
    New Member
    Join Date
    Feb 2013
    Posts
    13
    Location
    CT
    Tractor
    John Deere 1023E

    Default Re: Substitute for JDM J20D Transaxle/Hydraulic oil?

    Quote Originally Posted by jayhawkRoy View Post
    Walmart's Supertech meets the J20C&D spec. That's what I used.
    Is this still up to date? I live in CT and am looking for something with low viscosity. The Supertech says it meets J20C but nothing about J20D.

    I have some time before I need to change the oil, but like to be prepared.

    Thanks!

    El

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