When I flushed mine few months ago it took 14qts to get to a clean red ATF. Since I have a Toyota dealer near by I bought the Toyota T IV fluid which is exactly the same as the mobil 3309 or the volvo ATF. Doing the flush via the upper transmission cooling line is a very easy job. The only "tough" part was to get the green connector out. I suggest that you get the IPD ATF flushing kit http://www.ipdusa.com/product.asp?st...hStartRecord=1
It comes with a replacement connector and o-rings.