I just cannot comprehend any logical argument why changing the oil would have a detrimental effect on the longevity of the transmission, on ANY model unless it was replaced with non-approved fluid.
If the fluid turns black because it is carrying graphite in it, that cannot be good to circulate around all the components for a long period of time...
I'll be getting my Blackstone fluid analysis back by weeks end, so we will see what the actual labs say about the "so-called" lifetime fill fluid.
MB wouldn't have changed their opinions from lifetime back to 39k intervals if there was not a good reason...
My girlfriends old 2006 Audi TT had the lifetime fill garbage...transmission was trash at 70k miles.
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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k
Last edited by ps2cho; 03-08-2012 at 10:12 PM.
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