Regan Brown
The 1970s saw a shift in car fuel, with the introduction of unleaded gasoline due to health concerns regarding lead. This decade was also marked by oil crises, which caused a jump in gas prices and a surge in small car sales. The 1973 Arab oil embargo and the new fuel economy standards passed by Congress in 1975 led to higher gasoline prices and a shift in consumer preferences towards more fuel-efficient vehicles. The Environmental Protection Agency, established in 1970, also played a role in influencing car fuel choices by publishing annual booklets comparing mileage estimates for different car classes.
| Characteristics | Values |
|---|---|
| Fuel Type | Gasoline |
| Gasoline Type | Leaded |
| Gasoline Octane | Higher than in the past |
| Additives | Lead |
| Environmental Impact | High |
| Fuel Economy | Mileage calculators became popular |
| Fuel Efficiency | Demand for fuel-efficient cars increased |
| Car Sales | Small cars sold more due to fuel economy |
| Electric Cars | Urban electrics like the Comuta-Car and CitiCar were introduced |
| Car Manufacturers | Honda and Volkswagen offered fuel-efficient cars |
| Government Regulations | Catalytic converters were introduced to reduce emissions |
| Gasoline Prices | Sharp increases due to oil embargoes |
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Gasoline prices
In the 1970s, the average price of gasoline in the United States was 36 cents per gallon. Adjusted for inflation, this would be $2.70 per gallon today.
The 1970s also witnessed the energy crisis, where the Organization of Arab Petroleum-Exporting Countries (OAPEC) disrupted the market assumptions of American trade dependence, causing prices to soar from $3 to $12 per barrel. This period of hyperinflation peaked at nearly 14% in 1980, contributing to a major recession the following year.
It is worth noting that the 1950s and 1960s enjoyed some of the cheapest gasoline prices on record, with prices as low as 17 cents per gallon in 1950 and 34 cents per gallon by 1969. However, due to inflation, the purchasing power of money decreased, and the real value of gasoline prices may have been lower in the past.
Today, various factors continue to influence gasoline prices, including inflation, the COVID-19 pandemic, and geopolitical tensions such as Russia's invasion of Ukraine, which has resulted in sanctions and disruptions to the oil market. These factors have contributed to the recent surge in gasoline prices, impacting consumers and industries alike.
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Electric cars
In the 1970s, most cars were powered by gasoline, which had been the primary fuel source for automobiles since the 1890s. However, the 1970s also witnessed a brief resurgence of interest in electric vehicles (EVs) due to the oil crisis of that decade. This period, known as the "'Crap Era' of electric cars, saw the emergence of vehicles like the CitiCar, which was produced from 1974 to 1977 by Sebring-Vanguard, a company formed in response to the fuel crisis.
The CitiCar, with its distinctive robin's-egg blue paint and whitewall tires, was the best-selling American electric car until the advent of Tesla. While it may not match modern electric cars in terms of comfort and performance, the CitiCar represented a significant step towards more efficient cars. The early models featured six 6-volt batteries and a 1.9 kWh (2.5 hp) motor, with a top speed of 28 mph and a range of around 35 miles. Sebring-Vanguard later introduced the SV/48 model, which boasted eight batteries and a more powerful motor, increasing the top speed to 38 mph and extending the range to about 40 miles.
In 1976, Sebring-Vanguard unveiled an upgraded version, the Transitional or 1976 1/2 CitiCar, equipped with a 4.5 kWh (6 hp) motor. However, the company faced financial challenges, and in 1977, it went bankrupt. The assets were purchased by Frank Flowers, who created a new version called the "Comuta-Car." This vehicle found success during the 1978 oil shortage, selling over 4,000 units.
While the electric cars of the 1970s had limited capabilities and were considered "stone-age tech," they laid the foundation for the EV revolution that gained momentum in subsequent decades. The development of modern battery technologies, such as lithium-ion (Li-ion) batteries, played a crucial role in the advancement of electric vehicles, offering greater variability and performance compared to the lead-acid batteries of the past.
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Fuel efficiency
In the 1970s, gasoline was the primary fuel for cars, as it had been since the invention of the automobile in 1892. However, the cars from this era were not designed with fuel efficiency in mind. The average car from the 1970s achieved a meagre 11.9 miles per gallon (MPG), a far cry from the fuel economy of today's vehicles. This was partly due to the increasing size and speed of cars during this period, as well as the addition of lead to gasoline, which improved engine performance but had detrimental health effects.
The lack of fuel efficiency in 1970s automobiles became a pressing issue in the wake of the 1973 oil crisis, which forced automakers to re-evaluate their designs and begin building more efficient vehicles. While there had been some exploration of electric vehicles (EVs) in the early 1900s, the widespread availability of oil quickly shifted the focus to gas-powered cars, and by the 1970s, EVs were all but extinct.
It is worth noting that even with today's advancements, the improvements in fuel efficiency have been modest. Between 1923 and 2006, the fuel efficiency of the average American car only increased by 3 MPG. Interestingly, Ford's Model T from 1913 achieved a similar fuel economy to modern cars, with some sources claiming it could reach up to 25 MPG.
While there have been some efforts to improve fuel efficiency, such as the Obama administration's auto efficiency standards, the overall progress has been slow. This is particularly evident when compared to what is technologically feasible. For example, the French carmaker Citroen designed a vehicle in the 1930s, the Deux Cheveau, capable of an impressive 75 MPG, showcasing the potential for more efficient automobiles.
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Environmental impact
The 1970s were a period of economic growth and prosperity in the United States, but this era came to an end due to the oil shocks of the 1970s. The oil shocks were caused by the 1973 OPEC oil embargo, which led to a sharp rise in the cost of oil and gasoline, causing Americans to reconsider their driving habits. This, along with growing environmental concerns, prompted American automakers to produce smaller, more fuel-efficient cars.
The 1970s saw the emergence of electric cars designed for limited use in cities, such as the Comuta-Car and its predecessor, the CitiCar. While these cars gained some traction due to the high gasoline prices, their demand fluctuated with the spikes and falls in fuel prices. The Volkswagen Rabbit, a small front-wheel-drive car available in the mid-1970s, also gained popularity for its superb fuel economy.
The environmental impact of automobiles was widely recognized in the 1970s, with emissions from cars being identified as a significant source of air pollution. In response, the Environmental Protection Agency, established in 1970, began publishing annual booklets comparing mileage estimates for different car classes. These booklets aimed to guide consumers in making responsible purchasing choices. Additionally, auto companies were pressured to comply with stringent government regulations, leading to the adoption of catalytic converters, which improved fuel economy and reduced emissions.
The oil crisis and environmental concerns led to a shift in American culture, with President Nixon calling for a reduction in national energy consumption and promoting energy independence. This sentiment was echoed by President Carter in his 1977 speech, where he proposed expanding government responsibility, promoting conservation, and increasing the search for oil in untapped areas.
The 1970s also witnessed the introduction of unleaded gasoline due to health concerns associated with leaded gasoline. By 1988, emissions per vehicle mile traveled (VMT) for new cars and light trucks had decreased significantly, but the total VMT increased during the 1970s and 1980s, offsetting some of the emission reduction gains. As a result, vehicles remained a significant source of pollution in urban areas, contributing to the environmental impact of the automobile industry.
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Lead in gasoline
In the 1970s, lead was added to gasoline to improve engine performance. This mixture, known as "leaded gasoline", had an increased octane rating, allowing engine compression to be raised substantially, which, in turn, improved vehicle performance and fuel economy. Tetraethyl lead (TEL), an organolead compound, was widely used as a fuel additive for much of the 20th century, with its use in gasoline beginning in the 1920s. TEL was synthesised by German chemist Carl Jacob Löwig in 1853, and its effectiveness as an antiknock agent was discovered in 1921 by American chemical engineer Thomas Midgley Jr.
Despite its benefits to engine performance, the use of TEL in automotive fuel began to be phased out in the 1970s due to its toxic effects on humans, especially children. As early as 1924, health concerns were raised when 15 refinery workers in New Jersey and Ohio died of suspected lead poisoning. A panel was convened to investigate the potential dangers of lead in gasoline, and while they found insufficient evidence of lead poisoning over a short time period, they warned that longer exposure could result in "chronic degenerative diseases of a less obvious character".
In the 1960s, extensive health research established the devastating health impacts of low-level lead exposure, with children being particularly vulnerable. The health effects of lead exposure in children include anemia, behavioural disorders, low IQ, reading and learning disabilities, and nerve damage. In adults, lead exposure is associated with hypertension and cardiovascular disease.
By the 1970s, the general opinion of the safety of TEL had changed, and the U.S. Environmental Protection Agency (EPA) began phasing out leaded gasoline due to its serious health impacts. The removal of TEL from automotive fuel has resulted in significant benefits, including reduced air pollution and improved health outcomes.
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Frequently asked questions
Cars in the 1970s were using gasoline, which had been recognised as a valuable fuel since the invention of the automobile in 1892.
There were sharp increases in gasoline prices in the 1970s, due to oil crises and embargoes. This led to a surge in small car sales.
Yes, there were some electric cars designed for limited use in cities, such as the Comuta-Car and its predecessor, the CitiCar. However, demand for these cars fluctuated with the price of gasoline.
