Contour Enthusiasts Group Archives Forums General Troubleshooting how often should mtx-75 fluid be changed?

AirKnight what I said is that I have heard/read from several sources that in the case of atx if you have never changed it and mileage is high (I don't know about the 50K number) you might be better off leaving it alone.

The site I happened to quote said ..."Changing the fluid on a high mileage transmission can sometimes lead to transmission problems...". I'd say that is pretty clear. I also was once told by owner or mgr of a quicky lube place that if someone comes in with 100K mi and has never changed atx trans fluid he tells them not to do it. A while back I had read elsewhere, could not find it again, that thing that happens is something like the accumulated deposits are the only thing holding parts of the trans together or something like that.

Maybe these sources are totally wrong, I don't know. My question was just whether the same factor might be a consideration w/mtx. And my other question is if mtx needs fluid change why do mfrs not recommend it...the argument that they want your car to die so you buy a new one is not logical since 90% of US vehicles are atx and they all tell you to change fluid on those.