This past July I took my '07 base coupe from Kalamazoo, Michigan to New Richmond, Quebec in the Gaspe Peninsula.
Being horrified that I might end up with my standard gas milage of 21-22MPG, I determined to press a tad lighter on the gas pedal.
Basically, I'd gas up, pull onto either a freeway or toll road, set the autopilot at 70mph, (in the U.S.) and sit back and enjoy the ride until I had to get gas again.
I ended up getting 30.2 MPG over the 1,500+ mile trip. Of course, on the Canadian half of the route I was limited to 100-KPH, which is Canadian-speak for 62 MPH, which appears to be the maximum in both Ontario and Quebec and maybe Canadia as a whole.
An interesting note is that the gas prices in those two provinces averaged $3.90 USD for regular grade and $4.20 USD for midgrade. That is why I traveled about 300 extra miles by taking the US route as far as I could before being forced to enter Canada, rather than taking the shorter, all Canadian route. I figured that I'd be saving approx. $12.00 each fill-up by buying US gas, (needed about 5 fills) and would be way ahead of the game by driving the extra mileage, (4-1/2 hours).
I noticed that I could hit at least 250 miles by the time the needle hit the 1/2 full mark on the gage, and I usually chose to refuel at approx 300-330 miles.
Concerning Crossfires: Didn't see one during the trip but I ended up seeing a blue roadster in New Richmond the day after the Summer Festival.
All in all, I was quite proud of the fact that I was able to keep my foot off of the gas for once, and the rewards were astonishing.