I have to agree with this. BUT, whatever you do, do not have the transmission flushed. a simple drain and fill is all you need to do. flushing can damag seals, and god only knows your tranny likely has weak seals after 15 years with the same fluid.

I'd drain the pan, then fill it, i wouldn't drain the torque converter, or change the filter, just yet. then get it hot, drive it around a bit. this will be your "wash water" after letting the new ATF wash your transmission, I'd then drain everything, change the filter and refill with all new fluid.

New fluid may hurt the seals, but if it does that they were toast to begin with. new fluid will protect the friction surfaces (clutches and bands) so if your seals can hold up, changing the fluid will be beneficial to your transmission.

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