My forenza is burning a lot of gas.I filled up Wed night on my way home and here it is Friday morning and I have less than 1/4 tank of gas in my car. I notice the fuel cap does really fit/tighten when I pump gas. Is there something that I can do to get more gas miles out of my car. No warning lights come/are on or anything it just burns gas like crazy. When I first got the car I would use 1 tank in about 3 - 4 days now it seems like it's 1 day.