Titan Fuel Tanks can save you time and money. A TITAN Fuel Tank will allow you to be the first to the lake, first to the campground or first to your destination with as much as 1200 miles on one tank alone. Save money by filling up when diesel prices are best, without the fear of running out. Titan Fuel Tanks are larger, lighter, and more durable than stock fuel tanks, thanks to its high-density, military grade cross-linked polyethylene construction.