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  1. #1
    Gold Member
    Join Date
    Jul 2010
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    461
    Tractor
    kubota 4200

    Default Kubota super UDT2.........ok I belive.......

    I've always gone back and forth on synthetic fluids. I've never been dissapointed in synthetics but have always doubted they were worth the extra coin. Well I change out my kubota M7040 yesterday from whatever the dealer put in it to Super UDT2. That is supposed to be a full synthetic transmission fluid. Ok I just bushhogged some gosh awful thick stuff. Mowed about 3 hours. The engine ran cooler much to my amazment. I was mowing the exact same fields/speed/height and if anything this was thicker than usual. Engine used to run just a hair's width over a temp mark on the guage. Today it never ran up to middle of that mark. Not a lot but very noticable. In fact I never dreamed it would make the engine run cooler and actually puzzled over it a bit trying to remember if I had cleaned the radiator out or what the deal was. So since the engine is working less (apperently) there should be a saving in fuel. I imangined it used less fuel but no way to be certain. Anyhow thats it. I'm a synthetic man from here on out.

    I have a Kuhn tiller that taxed my GL5040 GST tractor. Its the 84 inch tiller on a 44 pto tractor. When I first got it it would sometimes start to lug that puppy down in deep soil. Well I went and changed the side gear oil and the gearbox oil as per the manual after 10 hours of tilling. I decided to put in some Amsoil sever gear 75/90 gear oil as its a messy job and I wanted to extend my hours on my gear oil. I noticed right off that it was like my tractor had gained a couple of horsepower. The stuff that came out of it was pretty thick. It has never lugged that tractor again even in the same gardens/plots that it did before. Even with that experiance I was still surprised at today's mowing. Everything get synthetics from here on out. I'm a believer!

  2. #2
    Veteran Member
    Join Date
    Sep 2004
    Posts
    2,487
    Location
    Kansas, Butler county, Just east of DooDah
    Tractor
    Kubota L4200 GSTCA

    Default Re: Kubota super UDT2.........ok I belive.......

    Synthetics are the BEST.... I've been using synthetic gear box lubes in everything foe a Long while now... They do run cooler.

  3. #3
    Veteran Member skyhook's Avatar
    Join Date
    Mar 2013
    Posts
    1,809
    Location
    Canada Ontario
    Tractor
    1996 Kubota L4200 GSTC,(sold) 1994 JCB 210S 4x4x4

    Default Re: Kubota super UDT2.........ok I belive.......

    I noticed after washing and waxing mine, I get the same result's...lol,,JK

    bilrus61 and Kenny, I noticed you both have the L4200 as I do,
    do you both use Super UDT2 in your tranny's.
    I'm due for a change and was debating on using this type in my GST trans.

  4. #4
    Veteran Member sandyc's Avatar
    Join Date
    Mar 2003
    Posts
    1,321
    Location
    Steep Falls, Maine
    Tractor
    Kubota B3350 HSDC

    Default Re: Kubota super UDT2.........ok I belive.......

    Once my equipment is broken in I switch to Amsoil diesel for the engine and Super UDT2 for the HST. No problems yet (knock wood)

  5. #5
    Gold Member
    Join Date
    Jul 2010
    Posts
    461
    Tractor
    kubota 4200

    Default Re: Kubota super UDT2.........ok I belive.......

    Skyhook I traded in my L4200 three years ago just not updaded my avitar. My first change in my L4200 was with Wal mart tractor hydrolic fluid. I didn't have any troubles at all with it but on my second change I changed to super UDT.....they ddn't have the SUDT2 back then, and it did shift quicker and a sharper. Never had a issue with the SUDT in my L4200.

    Sandyc what Amsoil oil do you use in your smaller diesels?

  6. #6
    Veteran Member
    Join Date
    Sep 2004
    Posts
    2,487
    Location
    Kansas, Butler county, Just east of DooDah
    Tractor
    Kubota L4200 GSTCA

    Default Re: Kubota super UDT2.........ok I belive.......

    I looked for a synthetic trans/hydraulic fluid, never did locate anything...
    So I started using Travelers Premium from Tractor Supply... Over 1400 hours now on my 3rd change.... I do let it warm up in the winter before using.
    If UDT2 would have been available I likely would have switched to that long ago, but having many years with Travelers oil... I will likely stay with this regular mineral oil... I do use Synthetic in everything else.

  7. #7
    Platinum Member Notforhire's Avatar
    Join Date
    Nov 2011
    Posts
    828
    Location
    Southwestern Virginia
    Tractor
    JD 5055E

    Default Re: Kubota super UDT2.........ok I belive.......

    I looked for a synthetic trans/hydraulic fluid, never did locate anything...
    You may want to check out AMSOIL. AMSOIL Synthetic Tractor Hydraulic/Transmission Oil SAE 5W-30
    I had a NH TC40D w/ a HST. The synthetic transmission oil made a big difference in the winter. I do imagine it would be less noticeable in a GST.

    Best, Bill

  8. #8
    Silver Member
    Join Date
    May 2014
    Posts
    118
    Location
    PA
    Tractor
    Massey GC1710.

    Default Re: Kubota super UDT2.........ok I belive.......

    I run Amsoil in everything, our 2010 VW Routan has a notoriously oil consuming 3.8 Ltr, ours doesn't consume any oil……Tractor will be all amsoil when I hit the 50 hr mark.

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