at 1500 miles i was a little over a quart low. This seems to be pretty consistent with break-in. The longer the car is driven the more oil seems to be burned as the OP experienced 2.5 quarts low at over 3000 miles. I had my dealer do an oil change because if this is a persistent issue i want to have legitimate records documenting the problem. We discussed the oil burning issue and agree to monitor over the next couple thousand miles. Thus far with another 700 miles since the change the level is holding steady. If in fact the engine is breaking-in to that extent, I would not simply add more oil, but get fresh oil and filter in the car. And no matter what ford says about 10K miles between changes, i would never go more than 5K. My two older cars have 170K+ and 130K+ and both still run fine. My coyote has no weird tics, and my MT82 still feels great. The key to making any car last is consistent and conscientious maintenance. Neglect will definately surface with greater affect and quicker in a performance engine running at tighter tolerances. So just keep her fed and clean and she will treat you well for many years.
2012 GT CS Ingot Silver Vert, Edelbrock E-force supercharger with CAI and 3.5 Pulley, Tremec T-56 Mag, Accufab 84.5, Centerforce DF, Billet Yoke aluminum driveshaft, FRPP 3.73 Rear, MRT Performance H-pipe, Bassani axle backs, JL Audio sound, Edelbrock strut tower brace, JPC adjustable UCA, UMI adjustable panhard bar, KW V3 coilovers, Steeda heavy duty front mounts, Steeda rear LCA's, 20" Steeda Spyders with Michelin Pilot Super Sports, Steeda Big Brake Kit ....... it just keeps going.