I have this 2008 Milan AWD, with Aisin transmission. It just passed 70000 miles, and I believe the transmission fluid was changed at 30000 miles.
Thinking about do a drain/refill myself, and sounds like it's a simple job since this one does not have a serviceable filter, so no need to drop the pan, just open up the drain plug and refill.
Almost pumped up to start, (knowing the fluid I can use (Toyota T-IV for cheap or use Vavoline Maxlife ATF), but then I was reading some thread here. Somebody mentioned that dealer charged $150 and they do a "backflush on screen" and considering the ford's price on that fluid, $8/qt, and it requires 7.4 qts full, he went with the dealer, since he had 71000 miles on the car and would choose the DIY if the tranny was younger.
My question is, what is "backflush on screen", is it good for my transmission (I heard people advise against any flush after 60000 miles)? I called up my dealer, asked how much they charge for transmission fluid change, and was quoted $199, I then asked if you "back flush on screen", he said yes. Do they charge differently for "change" and "flush"? How do I tell if they do flush it?
Another question is, use Toyota T-IV transmission fluid or the Valvoline maxlife? Is it Ok to mix maxlife with the leftover old Motorcraft ATF after the drain?
Thanks a lot