I went on a road trip to San Antonio, Saturday. I drove the 1,050 miles straight. On the second tank of gas I noticed I was getting excellent mileage doing 75-85 mph (about 3K RPM). I was at 250 miles just before the 1/2 tank mark. I toyed with the idea to see if I could get 500 out of the tank. I chickened out at 445 miles to the tank. All in all I found out that the more I drove the better the gas mileage, at least on the interstate. I hope this helps out anyone out there thinking of using their crossfire for a road trip.