Filling gas tank is a nightmare, the first batch of the newly remodeled vehicle. When filling it it'll pump for 3 seconds and then click off and shoot gas out because it thinks it's full so you have to click it on the lowest possible setting. It's a 16 gallon tank and if it's completely empty the first eight gallons will pump fine anything over that because of the way the tank is shaped is where the airlock is and that's when you can barely touch the gas lever before it clicks off and shoots gas up It takes me 20 minutes to fill up so anything before the half a tank mark will fill normally but once it's over half a tank is when the problem arises. From all of the forums that I've looked at for this new remodeled 2005 year this was a common problem and the mustangs built for the first 6 months and judging by the belt date mine was in March so far well within the first 6 months. When I pulled out the extra gas that dripped onto the ground caught on fire so I had to jump out and luckily I had a fire extinguisher in my trunk but that was terrifying because I'm at a gas station and the whole thing could have went up in flames.