Isn’t that true only if 1. You plug the Supercharger into the navigation system, so it knows it’s going to one? If you just hit up a convenient stop, it won’t.

Isn’t that true only if 1. You plug the Supercharger into the navigation system, so it knows it’s going to one? If you just hit up a convenient stop, it won’t. 2. Your trip to the Supercharger is long enough for it to matter. If it’s nearby, the preconditioning doesn’t seem to get it warm enough by the time you get there. At least that was my experience in a rental.