Medium and heavy trucks make up about 4% of the vehicle population. Due to their larger size, heavier payloads, and greater travel distances, medium and heavy trucks use more than one quarter of the total highway fuel consumption and account for almost 30% on-road of CO2 emissions.
Highway Vehicle Population, Fuel Use, and CO2 Emissions by Vehicle Type, 2014
Notes: MMT=million metric tons. Data do not include buses or motorcycles.
|Cars and Light Trucks||Medium and Heavy Trucks||Total||Share of Cars and Light Trucks||Share of Medium and Heavy Trucks|
|Number of Vehicles (Millions)||240||11||251||96%||4%|
|Gallons of Fuel (Billions)||127||44||171||74%||26%|
|Carbon Dioxide Emissions (Million metric tons)||1,051||421||1,471||71%||29%|
Note: Does not include buses or motorcycles.