I bought a 2006 Grand Caravan and have had poor mileage on two tanks now. I got 14.6mpg on the first tank and 17.8 on the second. The 17.8 was almost all freeway. My F-150 gets better mileage under the same use as this minivan. I have 21,000 on it and am ready to sell it. I took it in and Dodge says it is running as designed. I guess I know why friends told me to buy Toyota or Honda. My wife drove my F-150 in the same fashion she drives this and got better mileage. I have the 3.3l engine. My wife loves the look and the ride although a bit soft it is decent. We don't want to sell it, but at 14.6 I think a Sequoia could be a better economy vehicle. Has anyone else had this kind of mileage?