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  1. J

    X590 Trans fluid turned dark after adding small amount to fill line

    Thank you very much. I was thinking maybe the additional oil brought in some additional from further up on the trans. Your mentioning that the tank is only for expansion... Is there a temp range for the exterior of the trans case one might keep a eye on? Please pardon my OCD. Thanks for the...
  2. J

    X590 Trans fluid turned dark after adding small amount to fill line

    Good afternoon, I have a concerning question in regards to an issue that just occurred. I have a 2019 X590 and always noticed the trans oil level is always just on the add line when cold. So I added probably 1 or 2 oz of JD low viscosity HY-Gard to bring the level to just under full. This is a...
  3. J

    X500 Transmission Fluid Change - Question

    Good afternoon, I hope you don’t mind me chiming in on an old post. But I have a concerning question in regards to an issue that just occurred. I have a 2019 X590 and always noticed the trans oil level is always just on the add line when cold. So I added probably 1 or 2 oz of JD low...
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