
Diesel prices can vary significantly depending on location, with prices differing even between towns that are only a few miles apart. Fuel prices are influenced by various factors, such as local retail dynamics, competition among supermarkets, independent retailers, and fuel terminal distances in rural areas. To find the cheapest diesel fuel, individuals can use tools like fuel cards, mobile applications, and websites that provide real-time price comparisons and discounts. These resources enable users to make informed decisions and locate the most affordable options in their vicinity.
Characteristics and Values Table for Diesel Fuel
| Characteristics | Values |
|---|---|
| Cheapest Diesel Fuel in the US | Oklahoma, South Carolina, Arkansas, Mississippi |
| Cheapest Diesel Fuel in the UK | Varies by region, even within towns. Use the myRAC app to find the cheapest fuel. |
| Tools to Find Cheapest Diesel Fuel | GasBuddy app, OTR Fuel Card, OTR Mobile App, myRAC app, Pay with GasBuddy |
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What You'll Learn

US states with the cheapest diesel fuel
As of 2025, the US states with the cheapest diesel fuel are Texas ($4.69), Louisiana ($4.84), Oklahoma ($4.85), Mississippi ($4.86), Arkansas ($4.90), Kansas ($4.94), New Mexico ($4.95), Georgia ($4.97), Missouri ($4.99), and Alabama ($5.00). These states also have some of the lowest average prices for gasoline.
In contrast, the states with the highest diesel prices are California ($6.28), Pennsylvania ($6.16), Vermont ($6.16), Connecticut ($6.12), Hawaii ($6.07), Rhode Island ($6.03), Maine ($6.00), New York ($5.98), New Jersey ($5.97), and Delaware ($5.95). As of November 2022, only California, Hawaii, and Pennsylvania were among the top ten states with the highest diesel fuel prices.
The price of diesel fuel is an important factor for consumers, especially those who drive frequently or rely on diesel-powered transportation for work, such as couriers or truck drivers. Additionally, diesel prices can impact the cost of various goods, as most products are transported using diesel-powered vehicles. When diesel prices rise, the prices of groceries, household items, clothing, and other goods may also increase.
To save money on fuel purchases, individuals can use tools like the GasBuddy app, which helps users find the cheapest gas stations and offers discounts. Such resources can be particularly advantageous for those who drive frequently or travel long distances, ensuring they can locate the best fuel prices even in unfamiliar areas.
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Cheapest diesel fuel in the UK
The price of diesel fuel in the UK can vary depending on location, even between towns that are just a few miles apart. Local retail dynamics play a large part, with prices often driven by the presence of supermarkets or independent retailers. Affluent areas, such as big cities, tend to have higher prices, while rural locations can sometimes offer cheaper fuel.
There are several ways to find the cheapest diesel fuel in the UK. PetrolPrices.com offers a fuel map that can help you find the lowest prices quickly and conveniently. You can also download their app to access the most comprehensive fuel price tracking in the UK.
The RAC Fuel Watch section on the RAC website and app also provides insights into fuel pricing in the UK, allowing users to search within a certain radius to find the cheapest fuel in their area.
Fleet News has also teamed up with Allstar to offer a UK fuel prices locator, enabling users to compare prices and find the cheapest diesel fuel in their area.
Additionally, Costco members can enjoy exclusive fuel savings, and there are also brand-specific fuel finders for companies such as Esso, Shell, and Texaco.
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Fuel price tracking apps
Fuel prices have been a significant concern for drivers, especially with the recent hikes. Fuel price tracking apps come in handy in such situations, helping users save money and locate the best places to refuel. Here are some of the most popular fuel price tracking apps:
GasBuddy
GasBuddy is a widely-used fuel price tracking app with over 100 million downloads. It helps users find the cheapest gas stations nearby and provides directions to reach them. The app also offers a fuel card that can be used at various stations, providing additional savings on fuel purchases. GasBuddy users can save up to 25 cents on every gallon of fuel and earn rewards by snapping receipts, playing games, and finding deals. The app also has features for tracking fuel usage and staying informed about vehicle recalls.
Fuelio
Fuelio is a simple and easy-to-use Android and iOS application that helps users track their mileage, fuel consumption, and fuel costs. It provides information about gas stations and gas prices, allowing users to find the best places to refuel. Fuelio also offers customization options and automatic syncing to Google Drive or Dropbox for backup purposes. The app has been well-received by users, who appreciate its simplicity, effectiveness, and ability to track fuel costs and mileage without requiring excessive data input.
Other Apps
While GasBuddy and Fuelio are the most prominent fuel price tracking apps, other apps like Gas Guru, Fuel Finder, and GasPrices can also help users locate the cheapest gas stations in their area. These apps aggregate gas price data and user reviews to provide up-to-date information on fuel prices, allowing users to make informed decisions and save money on their fuel purchases.
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Discount diesel programs
Diesel fuel discount programs are a great way to save money on fuel costs, especially for trucking companies, fleet managers, and drivers. Here are some of the top discount diesel programs and some factors to consider when choosing a program:
Pilot Fuel Discount Program
The Pilot fuel discount program is one of the most extensive offerings available. It provides high savings and exclusive perks at Pilot and Flying J travel centres, with over 750 locations across the US and Canada. The program includes dedicated truck lanes, a mobile app for real-time fuel pricing and route planning, and a loyalty rewards program for additional savings on food and services.
TSD Open Roads Fuel Discount Program
The TSD Open Roads fuel discount program is specifically designed for the trucking industry and offers discounts at thousands of fuel locations across North America. The program has a transparent fee structure, detailed reporting, and an intuitive mobile app. It allows drivers and fleet managers to easily manage fuel expenses and track savings.
Fuel Card Programs
Fuel card programs are offered by companies like Fuelman and GasBuddy. These programs provide drivers with fuel cards connected to a bank account managed by the fleet manager or business owner. Each time a driver uses the card at a participating gas station, they receive a discounted price. Fuel cards often offer additional benefits such as tracking, reporting, spending controls, cashback, and waived transaction fees.
When choosing a diesel fuel discount program, there are several factors to consider:
- Fleet size and needs: Smaller fleets may prefer programs with lower fees and simple features, while larger fleets may require advanced features like real-time tracking and reporting.
- Pricing and fees: Compare monthly fees, transaction fees, and any other charges associated with the program.
- Additional benefits: Look for programs that offer maintenance discounts, roadside assistance, or rewards programs.
- Network coverage: Ensure that the program's network covers the areas where your drivers typically fuel up.
- Terms and conditions: Carefully read the fine print to understand any restrictions or limitations on the discounts and rewards.
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How to save money on diesel fuel
There are several ways to save money on diesel fuel. Firstly, you can use apps such as GasBuddy, Gas Guru, or get upside to find the cheapest diesel fuel prices near you. These apps provide a list of gas stations with their addresses and the current fuel prices, allowing you to compare and choose the most affordable option.
Another way to save is by using fuel cards, such as the OTR Fuel Card, which offers significant savings on diesel fuel purchases, especially for trucking companies. These cards are often accepted at a wide range of stations and may provide additional benefits like transaction fee waivers and discounts at select locations.
Additionally, you can improve your vehicle's fuel efficiency through regular maintenance and intelligent route planning. Simple checks like timely oil changes, clean air filters, and maintaining optimal tire pressure can increase fuel efficiency. Planning efficient routes that consider traffic congestion, road conditions, and topography can also help reduce unnecessary fuel consumption.
Using a credit card that offers cashback or discounts on fuel purchases is another effective way to save money. Some cards provide one to two percent cashback on fuel purchases, while others offer discounts when linked to a checking account.
Lastly, you can adopt driving habits that improve fuel mileage, such as reducing highway speed, avoiding rapid acceleration, combining trips, and eliminating unnecessary trips. These small changes can collectively make a significant difference in your diesel fuel expenses.
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