https://www.fueleconomy.gov/feg/atv.shtml
Where the Energy Goes: Gasoline Vehicles
Only about 12%–30% of the energy from the fuel you put in a conventional vehicle is used to move it down the road, depending on the drive cycle. The rest of...
gasoline vehiclesenergygoes
https://www.fueleconomy.gov/feg/label/learn-more-gasoline-label.shtml
Learn More About the Fuel Economy Label for Gasoline Vehicles
Learn More About the Fuel Economy Label for Gasoline Vehicles
learn more aboutfuel economygasoline vehicleslabel