I have automatic, For sure I've seen and heard of people doing a complete flush of all-trans fluid with the machine. sadly I can't do it at home. I did hear the pros and cons of doing that all over the internet. I want to do pan only and next time possibly find a place to do flush for me. maybe jiffy lube can do it ill look into it. do yall have pricing in Los Angeles for complete Trans Fluid change? or location? much appreciated thinking of doing that tonight at least myself do pan and filter.manual or automatic? just did my gearbox oil, was easy......automatic might be easier and more effective to have it done. less mess too. they hook it up to machine that sucks out the old fluid and pushes new fluid in while car is running. that way all the fluid gets changed, not just what is in pan. there is more in the torque converter than in the pan. torque converter doesn't drain just by pulling plug on pan. about a third of fluid is in pan and 2/3 in the torque converter.
manual is 2 qts of gear oil and just involves drain plug, removing air intake and removing 24mm nut on top of gearbox to put long funnel in and pour 2 qts in and put nut back in and air intake back on.