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  1. #1
    Platinum Member
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    kubota L4400

    Default Alternative gear oil

    My dad has a 8n, and just did a complete motor rebuild. Its running like a top, but he has other tractors, and rareley used this one through out winter. Only problem is when he starts it up in the cold the gear oil in the tranny is so thick he cant let the clutch out in neutral, the fluid is so thick it wants to stall the machine out. So my question is, do they make an alternative gear oil that he could use to solve this problem with the cold temps. Thanks in advance guys!

  2. #2
    Gold Member
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    NH Boomer 1025

    Default Re: Alternative gear oil

    Quote Originally Posted by weldermike View Post
    My dad has a 8n, and just did a complete motor rebuild. Its running like a top, but he has other tractors, and rareley used this one through out winter. Only problem is when he starts it up in the cold the gear oil in the tranny is so thick he cant let the clutch out in neutral, the fluid is so thick it wants to stall the machine out. So my question is, do they make an alternative gear oil that he could use to solve this problem with the cold temps. Thanks in advance guys!
    He could switch it to a synthetic

  3. #3
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Alternative gear oil

    if in a constantly cold area, use a UTF in the trans/rear/hyd common sump.

    soundguy

  4. #4
    Elite Member Mace Canute's Avatar
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    Default Re: Alternative gear oil

    Curious...do you know what weight of gear oil he used?

  5. #5
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    kubota L4400

    Default

    Quote Originally Posted by Mace Canute
    Curious...do you know what weight of gear oil he used?
    Regular 90w.

  6. #6
    Elite Member Mace Canute's Avatar
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    Default Re: Alternative gear oil

    From Engine & Gear Oil - Temperature and Viscosity Limits



    90 weight oil is intended for much higher temperatures, 60F and above. You need something more like an 80W-90 or an 80W oil.

  7. #7
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    Default

    Quote Originally Posted by Mace Canute
    From Engine & Gear Oil - Temperature and Viscosity Limits

    90 weight oil is intended for much higher temperatures, 60F and above. You need something more like an 80W-90 or an 80W oil.
    Friend from work just mentioned trying a syncromesh synthetic. Sound good?

  8. #8
    Elite Member Mace Canute's Avatar
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    Default Re: Alternative gear oil

    Yes, I believe it would be a good choice. Just get the viscosity right for the operating conditions.

  9. #9
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    Default

    Sounds good, thanks mace! Ill relay message to dad.

  10. #10
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Alternative gear oil

    remember.. back in the old days..90 is what they had.

    nowadays.. got more choices.

    IMHO.. I'd go for a utf, than some super expensive syn gear oil.

    if I did go with another gear oil.. I'd go with one that was yellow metal safe..

    soundguy

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