This weekend my wife and I went to Petoskey, MI. All-in-all it was about 600 miles round-trip, maybe a hair less. About 70% interstate driving at around 75 mph, with some slower/stop & go zones for construction; 20% rural, hilly roads; 10% city roads. We averaged exactly 34 MPG round trip. Woohoo! On the way there, we were up to 37.4 MPG, with the A/C on most of the time. Granted, the fuel economy figures were from the car's on-board computer, and these are known to be off sometimes. Still, I was very happy. The car rolled over 10,000 miles just before we got home, and is just over 6,000 miles on this OCI, which will be changed out later. The current oil & filter is only the first OCI since the factory fill, so I'm thinking there are still a small amount of metal shavings in the oil from engine break-in. I'm only expecting the MPG to increase on this next OCI.