The gas tank of the vehicle holds the fuel, which makes the car run. The fuel is propelled by the fuel pump. The gas tank can be made out of plastic high-density polyethylene, which can be made into complex shapes, save space, and can improve crash safety. The gas tank can also be made out of steel or aluminum, which is welded from stamped sheets. The material that makes up the gas tank depends on the make and model of the vehicle.
Gasoline is the most common type of fuel used in today’s vehicles. Gasoline allows for fast acceleration, quick starting, quiet operation, and easy combustion. Diesel is another type of fuel that is commonly used, although it tends to be in larger vehicles such as trucks. Diesel fuel vehicles have a 30 percent better fuel efficiency than gasoline vehicles. Ethanol is a bio-fuel that is made from corn, sugar cane, barley, or other natural products. Some cars can run on 100 percent ethanol, where other vehicles use it as an additive. Bio-diesel is made from palm oil, rapeseed, or sugar beet. Bio-diesel burns cleaner than gasoline and diesel fuel.