I have witnessed the same issue with my 13. Not as much oil consumption though. A dirty or restrictive air filter will cause the problem to get worse, also any restriction to the PCV system can also make it worse and lastly too much oil in the pan can also cause a similar situation (over fill). I took mine in when I had a similar issue and the dealer said it was normal (I had 45K KM on mine at the time). I am still not sure what is normal, all I know is that it can accumulate in the CAC, and if you get on it on the expressway it will suck all that out of the CAC and into the intake. Risking vapour lock or just a shudder (which will be logged by the car as several misfires). Again this happened to me in the past (the shudder). A turbo upgrade and meth are my next mods to my ride, the OEM turbos can be a PITA when it comes to this issue, the dealers and Ford are not willing to do anything about it unless its really bad. With the stock tune it is difficult to replicate these conditions as it doesn't suck/blow as hard as good 93 tune. I know that the F150's have had similar issues with both water and oil in the CAC causing a shudder at WOT in higher gears (easier to replicate different turbos/cac) I would keep an eye on the level in the CAC as mentioned by SHOdded.