I have finally ironed out the minor kinks (alternator, starter, and battery) for my 1992 Corolla and like to use it for emergency situation when driving a far distant is a must. I really like it because it is low profile and cheap so people won't want to steal it and its gas mileage is about 35+ mpg on highway doing 70 mph. I like to install an extra gas tank of 10-15 gallon capacity. I realize that I can always carry 3 or 4 used detergent jugs and refill my main gas tank but I saw what happened during Katrina, where people was getting mugged or begged for whatever little gas they had because they were prepare. I also followed the CNET's editor story closely and realize that having extra gas at all time probably would have saved his life. So I like to be able to install an extra tank to be placed inside my trunk. I thought about running hose from this tank to the main tank and take advantage of gravity to replenish the main tank. I don't mind having to pop the trunk to refill the extra there. Also, I am gas mileage Nazi and know how much gas my car has at all time base on miles driven, so I don't need any fancy modification to the gas gage. Also, a helpful hint of where to buy parts would be greatly appreciated. Thank you.