Does Changing Lifetime Fluid Kill Transmissions?

[Tiger]

Ditto... what I have been saying for a long time...

[Cambridge]

Failure rate is now 1 out of 4 - this isn't heading in the right direction...

[Maki]

It's a shame that none of the people who experienced transmission failure after changing fluid with high miles posted their experiences in more detail. Were the cars driven extensively in city traffic? Did they tow anything? What kind of climate were they in? Was the change DiY or at a BMW dealership? I'd be interested in knowing the cars' histories leading up to tranny death.

[Cambridge]

It's a shame that none of the people who experienced transmission failure after changing fluid with high miles posted their experiences in more detail. Were the cars driven extensively in city traffic? Did they tow anything? What kind of climate were they in? Was the change DiY or at a BMW dealership? I'd be interested in knowing the cars' histories leading up to tranny death.

the reason why the tranny's died. ...maybe I need to design another poll?

[Traian]

This is a good poll. I would love to hear the details too...

[632 Regal]

I still wouldnt feel comfortable with it. It could very well be the same stuff but I highly doubt it, then again most of the time I dont trust the big industries. If I had a 5hp-30 id probably spend the cash to replace the 3-4 qts needed when changing the filter every 30k miles and be done. Kinda like the cool blue issue...thunk thunk thunk.

Ditto... what I have been saying for a long time...

[pyro]

we had a pontiac van (doomed from the begining) and we took it to gm for its 75k mile service or what ever. well gm flushed it and when we got it home it didn't go into reverse and drive sliped in seccond and fourth. it was city/highway and california climate. they said they did a pressure flush but its gm... so they use the bg flush machine and at my work the bg flush machine uses the transmition to pump the fluid no external pump

[swenpro]

Jimbo, Maki, sc156k, shogun, Tiger, western99... your names are on the poll as having changed tranny fluid and still going strong after 10k... could you tell us more if you haven't already?

[Gayle]

It's a shame that none of the people who experienced transmission failure after changing fluid with high miles posted their experiences in more detail. Were the cars driven extensively in city traffic? Did they tow anything? What kind of climate were they in? Was the change DiY or at a BMW dealership? I'd be interested in knowing the cars' histories leading up to tranny death.

So krualto, leetsauce4000, and strap, please tell us more. What's the deal?

.

[Tiger]

I did mine when I had the valve body overhauled by Kirt. I replaced about 12 or 13 quarts if fluid that I drained out with Pennzoil Multi-Vehicle ATF. For some reason when I drained my tranny... practically all the fluid came out.

Don't compare apple to orange when people said tranny failed after flush on vehicle different than ours... tranny specific would be best. Mine is ZF 5HP30. Time of valve body overhaul is about 105,000 miles. Now 120K range.