Every Ford I have ever owned burns some oil, especially after going over 125K miles. I have noticed that using full Synthetic after 5000 break-in miles has reduced how much they burn in the future (YMMV). And since I use the additional remote by-pass filters on all my vehicles only changing the oil every 35 to 50K miles, I always need to add oil between full changes or when filters are changed out (the extended range filter every 7500 miles and By-pass at 50K when oil is changed). The by-pass filter cleans down to 2 microns removing carbon and the particles that cause normal engine wear, in under one hour if driving, all 8 quarts are additionally 100% filtered by the by-pass filter plus being normally filtered by the regular extended range oil filter.
For those changing oil every 5000 to 7500, you should not notice as much oil burn as before one really needs to add oil its time to do a full change. This is why Ford says there is not an oil burning problem because a half quart every 4500 miles actually doesn't require adding any oil as before another half quart would be used, one would be changing their oil at 5000 or 7500 miles so the oil level would never drop to Add A Quart before doing a full change.
My 2003 company Expedition started using a quart every 3500 miles when it hit 300K miles, Ford said not to worry about it. When it hit 400K, it was using a quart every 2000 miles and Ford said it was time for a value job (I'm like its time for a rebuilt engine or new truck). Mid-2006 with 433K miles, a new 2006 Expedition solved the quart every 2000 mile issue!