Looking to trade in my 2001 Explorer for a 2005/2006 Expedition. Mileage states only 1mph difference between the 2 vehicles. If we tow a small pop-up camper or bass boat, I would think you would lose mileage in the 6 cyl, perhaps to equal the mileage in the 8cyl. Or if anyone can give feedback on mileage with the Expedition. I really want to get one, but don't want to regret it because of gas issues. I realize it is an 8cyl truck and won't get spectacular gas mileage, but I am hoping it is not too bad. thanks