One way is through better tires; there are currently tires in development made of rubber that rolls along with less resistance, which has the potential to improve gas mileage by as much as 10 percent just through the tires! Another way involves using special lubricants that work well at a wider range of temperatures, allowing for better fuel efficiency even when the engine is cold as well as when it’s warm. This also has the potential to improve fuel efficiency by about 6 percent. Additionally, materials science is also the field responsible for developing lightweight materials to construct all of the components of a vehicle, which further contributes to improving vehicle fuel efficiency.