2004 MPV tranny Flush
 

I was told by the mazda dealership that i would need like 13 quarts of transmission fluid for a flush. Just wondering if this is true and if you should any mechanic be able to completely flush my system and replace ALL the fluid or should i take it to the dealership and let them handle it. I have approx 54,000 miles on the MPV right now.
I was also reading some of the posts that stated that you could replace about 3 or so quarts just by removing the drain plug on the trans, and if you do this a few times over a couple of months that maybe you would have FRESHER fluid in the tanny, not completely new, but maybe better than what it is now.

RE: 2004 MPV tranny Flush
 

The fluid capacity of 04 MPV transmission is 10.3 quarts. Any shop with a decent flush machine can do the same job as dealers. They all pretty much work on the same principle. Trans oil pumppushs the fluidinto a dual chamber cylinder divided by a flexible diaphram. The fluid going in on one side puts equal pressure onto other chamber with new fluid and this is pushed into the system.
You can drain a little over 3 quarts by doing a simple drain and fill but if fluid has not been serviced well and is discolored and getting burnt you will just be dilluting it down a bit. If fliud is in good conditiion then this is a very good regular maintenance practice. Did you see the post about doing the fliud flush by yourself. It works pretty close to a flush machine in my experience.

https://www.mazdaforum.com/m_41453/tm.htm