I've had my '09 ford escape XLS for three months now. She's equipped with the 4 cyl engine. It runs better than I thought! surprising little motor. Anywhow, as I've been calculating fuel mileage, and far away from anything that could be considered 20mpg city (I'm around the 14-16mpg range, I do mostly city driving) I feel as though I haven't been aggressive with he throttle, so I don't understand the low mpg's. What would you guys recommend as far as improvement on this front? Thanks in advance.