Sorry if this has been asked before. I'm a new 2013 Kia EX Sedan owner and have had the car for less than a month now and have about 1400 miles on it right now. I have a very long commute to work 5 days a week (about 34 miles with freeway each way) and I have to fill up twice a week. The gas light comes on at around 300 miles. I'm sure I can still go a little while longer, but I get very nervous when the range shows me --. It's very disappointing as I used to get 370+ miles with my old 2008 Elantra that I traded in. Granted, the Rio's gas tank is smaller and I'm thinking is this the problem? I've tried it with both Eco on and off and haven't noticed a difference. Do you think it will improve with time? How many miles do you go before you fill up? What's the most you have ever gone? Thanks!