Where does the energy from fuel go?

Vehicles are made to move... and yet only 13 percent
of fuel is used to propel a vehicle. 

Fuel is used by a vehicle in many other ways:

• 62 percent:  Powertrain (engine, transmission)
• 17 percent:  Driving behavior (idling, traffic congestion, driving habits)
• 13 percent:  External losses (braking, rolling resistance, steering,
  aerodynamic drag)
• 6 percent:  Driveline (driveshafts, differentials)
• 2 percent:  Accessories (heating/cooling, electronic accessories)