MPG not nearly as good as advertised--is this normal?
Hey guys, I just got an 11 Liberty. 4x4, so it's supposed to get 15 city/21 highway. After driving on the highway I refilled my tank, and have done all city driving since. I'm sitting at 3/4 of a tank after only 50 miles. I'm no math whiz, but that's 200 miles a gallon, and with an almost 20 gallon tank, if I got 15 mpgs I should be getting a little less than 300. Obviously I didn't get this car for fuel economy--would have bought a Prius if that's what I wanted! But I'm just wondering if this has been other people's experience too, because there's a big difference between around 10 mpg and the 15 they advertise!