milage or mpg

Hey folks, I purchased a 2012 Genesis 4.6L few months back. I am the second owner and the car has around 90k miles on it right now. Few days ago I have been noticing that my MPG has dropped a lot!! Had an average of 21mpg in city and RN it dropped all the way down to 13-16mpg. I didn't notice...

We have a 3.8 tech Genesis sedan. We have driven 5600 miles and so the engine should be finally broken in. On a recent trip across the state of PA and across the Allegheny Mountains, a 300 mile trip, we averaged 29.4 miles per gallon. I feel that this is a great number, especially at the speed...