hello scotty and thank you for all the great advice, even at 49 and being a country boy that's been around garages and cars all my life i still learn something from your videos pretty regularly.

my question is this..... we've got a 2007 buick lacrosse cxl, 165xxx miles, 3.8l v6, auto trans........ we bought the car used and unfortunately we don't know if the trans. fluid was ever changed......we started having problems a while back with hard downshifting and it taking way to long to shift down, letting the rpm's drop way down. i thought that it might just be the trans. wearing out and i pulled out a quart of fluid and put in a quart of lucas trans. slip fix..... recently a family friend that's a retired mechanic that still has his scan tools checked it out and when he was looking at it he mentioned that the torque converter wasn't working and that was probably causing the shifting troubles.... we're getting ready to buy the new converter and are also just gonna go ahead and get a new filter unit for the trans too and have our mechanic put it in too while he has the car...... my question is, should we have him catch all the fluid that he can when he tears into it and reuse it, or buy new fluid and let him put it in to replace however much comes out when he starts working on it.......

thank you so much and hope you fully recover from the virus very soon..... God Bless 

Jim