Is there anyone that makes an aftermarket fuel tank that's larger than factory. There are days I drive 250 miles one way and I am barely able to get there on one tank. I know there are companies like Titan XL Fuel Tanks that make tanks for diesel trucks that are up to 50% larger than factory. I would like to find something that is at least 12 gallons but 15 gallons if possible. Any help is appreciated.