Ok, I'm sure this has been covered before but, my searches have not helped. I have a 2006 3.7L and noticed I am only getting an average of 15mpg. Is this correct or could there be something wrong? I usually drive in the city but, sometimes on the highway. I took a trip to Orlando last weekend and averaged 15mpg on the highway. When I drive around town, I read 14.8mpg, what gives?