Does anyone know how many quarts of ATF I should expect to replace during simple drain and fill. it looks like the tranny takes more than 10 qts of fluid, but during drain and fill not nearly everything will come out. Measuring what has been drained is my solution to figure out hown much needs to go back in, but how much I can expect to come out? I want to make sure I buy enough of this Matic J ATF stuff before I even get there. Guys, let me know if you have done this already.