First of all, I apologize for the long-windedness of this but I think that there are enough data points that it is worth the read (and hopefully worth you providing me with suggestions for solutions) that I'm typing it anyway. With 3000 miles on the '07, it ran out of gas last night in the carpool lane of the freeway. Here's the relevant (and irrelevant) data: 1. I filled the tank a week ago, outside temperature was 70 degrees F, I rocked the car and tried to add more gas, etc. I filled it as full as I could. Gas guage read full. 2. I immediately drove the car about 200 miles 2a. Interesting datapoint - gas guage continued to read full until I had driven 90 miles, at which point one PIP disappeared from guage. This REALLY made me confident that I had actually filled the tank. 2b. Second PIP disappeared after another 40 miles. This really made me confident that the gas guage is very non-linear. 3. My partner drove the car for the rest of the week and was driving home last night in the carpool lane and I get a phonecall saying "Hey, what do I do if this thing runs out of gas????" Car was going 65 in HOV lane and starting to slow down. He said that all the lights on the dash lit up (not sure what he meant but doesn't matter). He managed to get to the roadside and have it die there. Oh, did I mention that it was raining and dark out? 3a. Miles since I filled tank: 460 3b. MPG since I filled the tank: 46 3c. Assumption: there is still gas left in the 11.9 gallon tank EVEN if the pip is blinking since the range should be > 460 miles 3d. Conclusion: assumption was wrong -- gas tank was never full and gas guage is even MORE non-linear than imagined, and that blinking pip DOES mean to buy gas. 4. I brought exactly 2.5 gallons of gas to him and dumped it in the tank. Car started fine and battery guage read 1 purple bar. 5. Followed him to the gas station where we added 7.5 gallons to the 2.5 that we had added 1/2 mile earlier. Rocked car, tried to top it off, etc. Outside temperature about 60 degrees F. 5a. Conclusion: it is only possible to put about 10 gallons into the 11.9 gallon tank in this particular car. 5b. Manual says that the capacity may be as much as 1.3 gallons less at 17 degrees F. It was not 17 degrees F _either_ time and even if it were, we are still missing a half gallon of gas. Summary Conclusions: Items 1, 2a. 3a, 3b indicate that the tank was full at a time when the weather was not cold and that the tank provided about 10 gallons of gas. Item 5 confirms that the tank holds about 10 gallons of gas. Bladder in gas tank is defective (?) So HELP! Am I correct? Can I get this fixed/replaced? I realize that I will probably live with the non-linearity of the guage but I would really like that extra 2 gallons of capacity in the tank. And I think it's just plain wrong to say that it's an 11.9 gallon capacity when it is a 10 gallon capacity. I think my tank/bladdar are defective, what do you think? I think my data points are pretty solid and that I have a good argument for the dealer. What do you think? Thanks for the help. -------------- Added edit after repeated replies providing me with not what I need: OK People, PLEASE stop providing me with the advice to fill the car up when it has a quarter tank left, etc. Sure it's safer that way but I'm not the primary driver of the car and HE tends to drive closer to empty. I'm sure that from now on when he has one pip he will fill up. BUT THAT ISN'T the advice I am seeking -- I want suggestions if there are any concerning CAN THE CAPACITY BE FIXED by the dealer!!!! Not the helpful suggestions for how to avoid this in the future. Thanks.