It doesn't take long to do the tranny at all. Plan on 15 minutes, maybe 30 if you want to be safe. I picked up the friction modifier at the dealer when I had the recall work done. It cost $6.11 for the 4 oz bottle including tax. They knew exactly what I wanted but the part number is in the FAQ if you think you might need it. If you have trouble getting the FM, let me know. I could mail you the half bottle that I have left over.
Ben