I checked the filler neck today out of curiousity and to my surprise there was no gas cap. I almost called the dealer in a high state of anger until I noticed in the gas door area it said it was supposed to be capless. lol
the 2009 escape we bought late 2008 had this but my gt500 didnt. our new f150 does so this is probably on all fords now. the system works great for us, no problems