Ameer Randolph
The transportation sector is a major contributor to global carbon emissions, with the combustion of oil-derived fuels significantly contributing to global CO2 emissions. In 2021, petroleum products accounted for about 90% of the total US transportation sector's energy use, with gasoline being the dominant transportation fuel in the country. Over 94% of the fuel used for transportation is petroleum-based, with gasoline and diesel being the primary sources. Cars, light trucks, and motorcycles account for approximately 60% of energy used in transportation, and 97% of those vehicles run on gasoline.
| Characteristics | Values |
|---|---|
| Percentage of the transportation sector energy use by petroleum products in 2023 | 89% |
| Percentage of the transportation sector energy use by petroleum products in 2021 | 90% |
| Percentage of the transportation sector energy use by biofuels in 2023 | 6% |
| Percentage of the transportation sector energy use by biofuels in 2021 | 5% or 6% |
| Percentage of the transportation sector energy use by natural gas in 2023 | 5% |
| Percentage of the transportation sector energy use by natural gas in 2021 | 4% |
| Percentage of the transportation sector energy use by electricity in 2021 | <1% |
| Percentage of fuel used for transportation that is petroleum-based | Over 94% |
| Percentage of vehicles that run on gasoline | 97% |
| Percentage of energy used in transportation by cars, light trucks, and motorcycles | 60% |
| Percentage of energy used in transportation by medium/heavy trucks and buses | Second highest |
| Percentage of energy used in transportation by water transportation | Third highest |
| Percentage of today's transportation fuels that are derived from petroleum | 80% |
| Percentage of vehicles that run on petroleum or diesel fuels | 98% |
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What You'll Learn
- In 2023, petroleum products accounted for about 89% of US transportation energy use
- Biofuels, including ethanol and biodiesel, contributed to around 6%
- Gasoline is the dominant transportation fuel in the US
- Over 94% of fuel used for transportation is petroleum-based
- Cars, light trucks, and motorcycles account for 60% of energy used in transportation
In 2023, petroleum products accounted for about 89% of US transportation energy use
In 2023, the United States transportation sector's energy use was heavily reliant on petroleum products, which accounted for approximately 89% of the total. This high percentage underscores the significant role that petroleum-based fuels continue to play in powering various modes of transport.
Petroleum products, derived from crude oil and natural gas processing, include gasoline, diesel fuel, jet fuel, residual fuel oil, and propane. These fuels are used extensively in cars, trucks, airplanes, and ships, making them essential for both personal and freight transportation. The dominance of petroleum in the transportation sector is further highlighted by the fact that 97% of cars, light trucks, and motorcycles run on gasoline, which is primarily petroleum-based.
While there has been a growing trend towards alternative fuels, such as biofuels, electricity, and natural gas, their contribution to the transportation sector's energy use remains relatively low. Biofuels, including ethanol and biodiesel, constituted about 6% of the energy consumption in the transportation sector in 2022 and 2023. Electricity, despite being a clean energy source, represented a small fraction of the energy mix, with mass transit systems and electric vehicles contributing less than 1% to total transportation sector energy use.
The transportation sector is a significant contributor to greenhouse gas emissions, and the high reliance on petroleum-based fuels exacerbates this issue. With petroleum providing the fuel for vehicles, the sector produces substantial CO2 emissions. Additionally, the combustion of oil-derived fuels in the transportation sector significantly contributes to global CO2 emissions, underscoring the need for alternative fuels and cleaner energy solutions.
Decarbonizing transportation, particularly personal vehicles, is crucial for achieving climate change goals. Electric vehicles (EVs) powered by renewable energy sources offer a promising solution, as they produce zero carbon emissions. However, the widespread adoption of EVs faces challenges due to factors such as cost, range limitations, and the lack of charging infrastructure. As a result, petroleum-based fuels remain the most widely used option for vehicle owners, highlighting the need for comprehensive policies and incentives to accelerate the transition to cleaner energy in the transportation sector.
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Biofuels, including ethanol and biodiesel, contributed to around 6%
Ethanol and biodiesel were some of the first automobile fuels but were replaced by gasoline and diesel fuel made from crude oil by the early 1900s. Today, most finished motor gasoline contains up to 10% ethanol by volume. Biodiesel is produced by chemically reacting alcohol with vegetable oils, fats, or greases, such as recycled restaurant grease. It is most often used in blends of 2% or 20% biodiesel but can also be used as neat biodiesel (100% biodiesel). Biodiesel can be used in unmodified diesel engines with the existing fueling infrastructure. It is the fastest-growing alternative transportation fuel in the US. It also has additional benefits, such as containing virtually no sulfur, improving the smell of diesel fuel, and acting as a superior lubricant.
Biofuels are biomass converted into liquid fuels. Ethanol, a type of alcohol, is made by fermenting any biomass high in carbohydrates through a process similar to beer brewing. It is also a common additive, usually making up 20% of the blend to reduce vehicle emissions.
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Gasoline is the dominant transportation fuel in the US
The transportation sector is a major contributor to greenhouse gas emissions, with the sector accounting for 30% of US greenhouse gas emissions. Gasoline-powered vehicles are extremely inefficient, with less than 1% of the car's fuel actually moving the driver. As a result, decarbonizing personal vehicles is a priority to meet climate change goals.
Cars, light trucks, and motorcycles, which are mostly powered by gasoline, account for approximately 60% of energy used in transportation. In 2021, gasoline accounted for 58% of total US transportation energy use. This figure includes aviation gasoline and motor gasoline, with the latter including petroleum gasoline and fuel ethanol.
While gasoline is the dominant transportation fuel, there are alternative fuels that are becoming more common. Biofuels, for example, contributed about 6% of transportation sector energy use in 2021 and 2022. This includes ethanol, which made up about 4% of biofuel consumption, and biodiesel, which made up the remaining 2%. Biodiesel is the fastest-growing alternative transportation fuel in the US, offering superior lubrication and reducing sulfur levels in diesel fuel.
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Over 94% of fuel used for transportation is petroleum-based
The transportation sector is a major contributor to greenhouse gas emissions, with over 94% of the fuel used being petroleum-based. This includes gasoline and diesel, which are derived from crude oil. In 2021, petroleum products accounted for about 90% of the total US transportation sector's energy use, with biofuels contributing around 6%. Gasoline is the dominant transportation fuel in the United States, followed by distillate fuels, which are mostly diesel, and jet fuel.
Cars, light trucks, and motorcycles, which account for about 60% of energy used in transportation, run predominantly on gasoline. 97% of these vehicles use gasoline, and only about 3% use electricity. The high usage of gasoline is partly due to the fact that gasoline-powered vehicles are extremely inefficient, with less than 1% of the car's fuel actually moving the driver. This has led to a push for decarbonization, with electric vehicles (EVs) being one of the main solutions.
While alternatives to fossil fuel vehicles are evolving, such as electric and hydrogen-powered cars, petroleum-based fuels remain the most widely used. This is due in part to the limitations of alternative fuel vehicles, including limited driving range, high costs, and engine adjustments.
The transportation sector is not limited to road vehicles, and other modes include aviation, maritime, rail, and pipelines. Aviation, for example, relies almost entirely on fossil fuels, with jet fuel being used in airplanes and some helicopters. Similarly, maritime transport primarily uses fossil fuels in the form of heavy fuel oil, marine gas oil, and marine diesel oil.
With the transportation sector accounting for around 20% of global energy consumption and being the biggest consumer of oil, the shift towards alternative fuels is crucial in mitigating climate change. While electricity production for transport is still a relatively low percentage of total electricity use, the adoption of electric vehicles and alternative fuels is expected to play a significant role in reducing the sector's environmental impact.
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Cars, light trucks, and motorcycles account for 60% of energy used in transportation
In 2023, the US transportation sector relied heavily on petroleum products, which accounted for about 89% of the total energy consumption. This includes gasoline, diesel fuel, jet fuel, and residual fuel oil.
Cars, light trucks, and motorcycles, classified as light-duty vehicles, are significant contributors to energy consumption within the transportation sector. They make up the largest share of total US transportation sector energy consumption. While an exact percentage for their contribution is not readily available, it is estimated to be substantial, with light-duty vehicles accounting for 60% of the energy used in transportation.
Light-duty vehicles, including cars, light trucks, and motorcycles, are used extensively for personal transportation. In the US, people drive their personal vehicles approximately 2.3 trillion miles annually, with 98% of these vehicles powered by petroleum-based fuels, such as gasoline and diesel. This high usage results in a considerable demand for fuel, with the US consuming about 13 million barrels of oil each day to meet its transportation needs.
Gasoline, in particular, is the dominant transportation fuel in the US, accounting for 52% of total energy consumption by the transportation sector in 2022. This includes motor gasoline, used in cars, light trucks, motorcycles, and boats, and aviation gasoline used in airplanes. Distillate fuels, primarily diesel, come in second, accounting for 23% of energy consumption, and are mainly used by trucks, buses, trains, boats, and ships. Jet fuel, used in jet airplanes and helicopters, makes up 12% of energy consumption.
While petroleum-based fuels continue to dominate the transportation sector, there is a growing trend towards alternative fuels. Biofuels, for instance, contributed about 6% of total transportation sector energy use in 2023, with most of it blended with petroleum fuels. Natural gas, while accounting for only about 5% of energy use, is also gaining traction, mainly as fuel for natural gas pipeline compressors. Additionally, electricity is used by electric vehicles and public mass transit systems, although its contribution to total energy consumption remains low, at less than 1%.
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Frequently asked questions
In 2023, petroleum products accounted for about 89% of the total US transportation sector energy use. In 2021, this figure was 90%.
Biofuels contributed about 6% of the energy used in the US transportation sector in 2021 and 2022. Natural gas accounted for about 4% to 5% of energy use in the same period, mainly used in natural gas pipeline compressors.
Cars, light trucks, and motorcycles account for approximately 60% of energy used in transportation, and 97% of those vehicles run on gasoline. Trucks and buses are also fuelled by gasoline (11%) and diesel (81%). Aviation, shipping, and rail also use fossil fuels in the form of jet fuel, heavy fuel oil, and diesel.
Yes, alternatives to petroleum-based fuels include electric vehicles (EVs) and hydrogen vehicles. These alternatives produce fewer CO2 emissions and are better for the environment. However, they have drawbacks such as limited driving range, high costs, and engine adjustments.
