I would suggest T/H whenever towing. It will change your shift points and you might find it hard to hit 5th at cruising speed until you get going pretty fast. It sure is a handy feature, and I sometimes use mine even running empty if in the hills to help with slowing and downshifts.
I can't comment with authority on juice settings, but I'm sure somebody will chime in and tell you what is OK.
Jim
I can't comment with authority on juice settings, but I'm sure somebody will chime in and tell you what is OK.
Jim