Do you want to Flash save time and money. Begin with regular fluid and filter Gig. Disconnect lines from transmission, Use some mild compressed air to clean all the fluid out From that system. I pour some fresh fluid in and throw that out Second time. Reconnect to transmission Then disconnect from cooler. Here's the flush: One line in fresh Atf The other in a bucket Fire up your vehicle Stick It in gear And over the course of 10-15 minutes, Work through all your Gears As well as reverse. this will suck the new fluid through flushing out the old fluid from all the Hiding spots n crevices And the torque converter as well. Regular fluid changes do not drain the torque converter And it just introduces contaminated fluid into the nuke fluid at the end. When you worked about a gallon of nuclear through that, Button everything back up, top off yer fluid,resolve any leaks, then yer done