I saw some video, sorry cannot recall the source, where the dude pops off the passenger's side rear tail light assembly...unplugs a tube...squirts in a few drops of some air brake line de icer...and then claims that this is THE fix for a/s issues in cold weather climates. The thing I obviously want to know is whether this is true and whether guys in cold climates can confirm this? Secondly, isn't this a closed system? Wouldn't opening up some tube let all the air leak out and cause the entire system to get effed up?