I have read what you guys are saying and I doubt you will believe me. I am not arguing with anything just telling you what I have found. I have run my car for a week after the light comes on before filling up. The needle is way buried past the last tick and I have never, ever put more than 13 gallons in. Usually around 11 or 12 tops off the tank. I'm not saying my tank was completely empty but it had to be really close. I have taken two 700+ mile road trips to the same place in the last three months. I always filled up with a quarter tank left and usually put about ten gallons or a little more in. I s*** you not I was getting 380 to 400 miles on three quarters of a tank. Needless to say I was pleased with this. The only time I got less was when I used the A/C. I have a manual 2.3 '04 hatch with aftermarket 17in wheels(that I think are heavier than stock cause it feels a little slower...) and a cheapo cone filter job I rigged up myself.