today I was in the TT and was getting ready to head south, well last fall when I winterized I only blew out the lines since I could not figure out how to add the pink stuff with out a winterizing kit ...
Blowing lines out if done right is good no matter what temp it gets, if it is not done right or if you don't trust yourself blowing them out then you ought to us the pink stuff. I've done it both ways an prefer blowing the lines out better an just use the pink stuff in traps, just do what works for you