Regan Brown
The price of diesel fuel versus petrol is a topic that is constantly in flux. In the past, diesel was the cheaper option for high-mileage drivers, but with the recent surge in fuel prices, the gap between petrol and diesel costs has narrowed. Dynamic fuel pricing, implemented in some countries, results in fuel prices being revised regularly, sometimes daily, to account for changes in the global price of crude oil, exchange rates, taxes, and dealer margins. This variability in pricing makes it challenging for consumers to make informed choices about their fuel options, and many now rely on fuel price comparison apps and calculators to find the most cost-effective solutions for their vehicles.
| Characteristics | Values |
|---|---|
| Petrol Price in the UK | £1400 less expensive than diesel |
| Diesel Price in the UK | £0.22 more per litre than petrol |
| Diesel Price in Australia | $2.22 per litre |
| Diesel Price in London | 154.8 p/litre |
| Diesel Price in Northern Ireland | 148.1 p/litre |
| Petrol Price in the US | $0.25 more per litre than diesel |
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What You'll Learn
Diesel is more expensive per litre
The price of diesel fuel versus petrol depends on a variety of factors, including the global price of crude oil, the exchange rate of the local currency to the dollar, and local taxes. In some places, such as India, fuel prices are revised regularly based on dynamic fuel pricing, taking into account the average international crude price and the exchange rate.
In the UK, for example, diesel has historically been the preferred fuel for high-mileage drivers due to its greater economy. However, as of February 2024, diesel fuel costs an average of 22p more per litre than petrol. This price difference has impacted the running costs of vehicles, and the days of diesel being the cheaper option for high-mileage motoring may be over.
Similarly, in a comparison between the GV70 diesel and petrol variants, the diesel fuel cost was 25p more per litre at the filling station. However, the diesel version proved to be more cost-effective overall, with a lower purchase price and a lower cost per mile.
While diesel may have a higher price per litre, it's important to consider other factors such as vehicle efficiency, driving habits, and local fuel prices. For instance, diesel vehicles with mild hybrid technology can improve fuel economy and reduce fuel costs. Additionally, driving efficiently and locating the cheapest fuel stations can help optimize fuel costs.
In summary, while diesel fuel may be more expensive per litre in some locations, the overall cost-effectiveness depends on various factors, including vehicle characteristics, driving habits, and local market conditions.
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Petrol cars are cheaper to buy
Petrol cars are generally cheaper to buy than diesel cars. This is due to a variety of factors, including the taxes imposed by the government, the costs of drilling, refining and transporting the fuel, and the profit margins for fuel companies.
The UK government controls the fuel duty, which is currently set at 52.95p per litre, and the standard 20% VAT rate. These two components make up the majority of the price of petrol and diesel. The government earns around 65% of the overall cost of petrol, diesel, and bioethanols through these taxes. While fuel duty represents a fixed price, the VAT varies depending on the amount of fuel purchased.
In addition to taxes, the wholesale cost of fuel, which includes currency exchange rates, global oil prices, and domestic supply and demand, also influences the price of petrol and diesel. Petrol has historically been cheaper than diesel due to lower production costs and higher imports of diesel from other countries. The gap between petrol and diesel prices tends to widen during the winter, as there is a surplus of petrol available from the US, driving down prices, while diesel demand increases in continental Europe for heating oil.
Fluctuations in global oil prices, such as those caused by the Russia-Ukraine conflict and tensions in the Middle East, also impact the price of petrol and diesel. These events have led to spikes in oil prices, which affect the cost of fuel worldwide. Additionally, the profit margins of fuel retailers in the UK can contribute to higher prices at the pump.
While the price of petrol and diesel is influenced by various factors, the overall cost of owning a petrol car is generally lower than that of a diesel car due to the combined effects of taxes, production costs, global supply and demand, and retailer profit margins.
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Diesel cars used to be cheaper to run
The cost of running a car is a significant consideration for many drivers. In the past, diesel cars were considered a more cost-effective option, especially for those covering high mileage. However, with recent changes in fuel prices and technological advancements, the dynamics between petrol and diesel cars have shifted.
Historically, diesel cars were more fuel-efficient than their petrol counterparts, making them a popular choice for those seeking economical motoring. This advantage was particularly pronounced for high-mileage drivers, who could reap significant cost savings over time. For instance, consider the GV70 diesel, which, despite having a higher fuel cost per litre, offered a lower cost per mile when compared to its petrol equivalent. This resulted in a substantial fuel saving of £600 over a typical three-year/30,000-mile ownership period.
However, the landscape of fuel prices has evolved. In recent years, the average price of diesel fuel has increased, with diesel now costing approximately 22p more per litre than petrol. This shift has narrowed the gap in the cost per mile between petrol and diesel cars. In some cases, the difference in fuel prices might be negligible, leading to similar overall costs for petrol and diesel variants, as observed in the comparison between the petrol and diesel versions of the 308 model.
The decision to choose between petrol and diesel power is becoming more nuanced. While diesel cars may still offer advantages in terms of acceleration and engine performance, the higher purchase cost of diesel vehicles can be a deciding factor for cost-conscious buyers. Additionally, factors such as the global price of crude oil, exchange rates, and local taxes can significantly impact the pump prices of both petrol and diesel fuels, influencing the overall running costs of these vehicles.
To make informed choices, drivers can utilise resources like fuel price monitoring initiatives, fuel cost calculators, and fuel-saving guides. These tools help drivers understand the dynamic nature of fuel prices, compare costs between petrol and diesel options, and make adjustments to their driving habits to optimise fuel efficiency and manage their vehicle expenses effectively.
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Petrol prices vary across retailers
Additionally, the strength of a country's currency plays a role in the price of petrol. For instance, the value of the pound sterling compared to the US dollar can impact petrol prices in the UK, as oil is traded in dollars. A weak exchange rate can contribute to higher fuel prices, as seen in the UK in 2022 when the country experienced a significant increase in unleaded petroleum prices.
Political stability is another factor that can influence petrol prices. For example, in June 2024, tensions between Israel and Iran resulted in a series of strikes that contributed to an increase in wholesale unleaded prices.
The price of petrol is also affected by the taxes and duties imposed by governments. In the UK, as of September 2024, fuel duty was set at 52.95 pence per litre, with VAT at 20%. The proportion of tax paid can vary depending on the pump price; for instance, at 120 pence per litre, 65% of the cost is tax, while at £1 per litre, the tax proportion rises to 75%.
To make informed purchasing decisions, consumers can utilise resources such as price comparison websites and mobile applications. These tools allow users to compare fuel prices across different retailers and locations, helping them find the most cost-effective options. By considering factors beyond just the retailer's brand, consumers can save money on their fuel purchases.
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Diesel prices are affected by taxes and exchange rates
The price of diesel fuel is influenced by a multitude of factors, including taxes and exchange rates, which can cause prices to fluctuate. Taxes imposed on diesel fuel by federal and state governments contribute to higher prices. For instance, in the United States, the federal excise tax for on-highway diesel fuel is 24.3 cents per gallon, which is 6 cents higher than the tax on gasoline. California, in particular, has higher diesel prices due to unique taxes and fees, such as the Low Carbon Fuel Standard (LCFS) and the differential sales tax rate of 13.0% for diesel compared to 2.25% for gasoline. These taxes significantly impact the retail price of diesel fuel.
Exchange rates also play a role in diesel prices. For countries that import a significant amount of their oil, a weaker local currency against the dollar can lead to higher diesel prices. This is because oil is traded in US dollars, so a weaker currency means that importers need to pay more in their local currency to buy the same amount of oil. This increased cost is often passed on to consumers in the form of higher diesel prices.
The cost of crude oil is another significant factor in diesel pricing. As diesel fuel is a major transportation fuel, its demand often aligns with economic trends. When the economy is strong, demand for diesel increases, leading to higher prices. Conversely, during economic downturns, demand may decrease, resulting in lower prices. Additionally, the availability of refinery capacity affects diesel prices. If refineries need to reduce their output during periods of oversupply, the cost of refining diesel fuel increases, which is then reflected in the retail price.
Diesel prices are also influenced by local market conditions, including the location and ownership of retail outlets. The cost of doing business, including taxes and real estate costs, can vary depending on the dealer's location, leading to price differences even between nearby retail stations. Furthermore, high-volume truck stops that cater to large commercial vehicles tend to offer diesel fuel at lower prices compared to smaller-volume service stations.
It is worth noting that government policies and regulations can also impact diesel prices. Some countries may heavily tax diesel to discourage its use for environmental reasons, while others may provide subsidies to promote economic growth. These factors, along with supply and demand dynamics, contribute to the complex nature of diesel fuel pricing.
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Frequently asked questions
The national average price for a litre of unleaded petrol in the UK is 148.35p, while diesel is 154.8p per litre in London and 148.1p per litre in Northern Ireland.
The price of diesel fuel and petrol is influenced by wholesale fuel prices, which are affected by the global price of crude oil.
Fuel duties represent a significant source of revenue for the UK government. The government charges a fuel duty of 52.95p per litre for both diesel and petrol, which is included in the pump price.
The cost of owning a petrol or diesel car depends on various factors, including purchase price, fuel economy, and maintenance. Historically, diesel cars were considered more cost-effective for high-mileage drivers due to their greater fuel economy. However, this may no longer be the case, as the difference in fuel prices has narrowed.
You can use fuel price comparison tools such as Fleet News or the myRAC app to locate the cheapest fuel prices in your area. These tools can help you find the most affordable petrol and diesel fuel options near you.
