Trusted UK Red Diesel Supplier
Red diesel, also known as gas oil, is an essential fuel for businesses operating off-road machinery across the agriculture and marine industries. At Certas Energy, we supply high-quality red diesel with reliable nationwide delivery, ensuring your business stays powered when it matters most.
With a vast network of over 150 depots and a fleet of 900 tankers, we provide bulk red diesel supply and expert guidance to keep your operations running efficiently.
Place your bulk order today
Keep your business running with secure deliveries direct from your local depot.
What is Red Diesel?
Red diesel, also known as gas oil, is a rebated fuel used in off-road vehicles and machinery across industries like agriculture and marine. It is chemically similar to white diesel but contains a red dye for regulatory identification.
The fuel is taxed at a lower rate, making it a cost-effective energy source for eligible businesses. However, red diesel usage is strictly regulated by HMRC. It is essential for businesses to check whether they are compliant before use.
Who Can Use Red Diesel?
As of April 2022, red diesel can only be used by specific industries. If your business falls into one of the categories below, you may be eligible:
- Agriculture, horticulture, fish farming, and forestry
- Marine craft (with specific regional exceptions)
- Non-commercial heating and electricity generation (e.g., state schools and hospitals)
- Community amateur sports clubs and golf courses
- Travelling fairs and circuses
- Rail transport
Following the 2022 fuel duty changes, many industries that previously used red diesel—such as construction, manufacturing and logistics—are no longer permitted.
Need clarity? Contact our team for guidance on HMRC fuel regulations.
Red Diesel Delivery & Storage
At Certas Energy, we ensure a seamless red diesel supply with nationwide coverage and a fleet of 900 tankers. Our fuel solutions include:
- Bulk Red Diesel Delivery – Flexible supply options tailored to your business.
- Reliable Service – Keeping you running in all situations.
- On-Site Fuel Storage Solutions – Bunded fuel tanks and telemetry monitoring for efficient fuel management.
We provide scheduled fuel deliveries to help prevent downtime and fuel shortages.
Contact us today to arrange your red diesel delivery.
Sustainability & Alternatives
As businesses seek lower-carbon solutions, there are alternative fuels that can help reduce emissions and improve sustainability.
HVO (Hydrotreated Vegetable Oil) is a drop-in alternative diesel. Ideal for use in on and off-road commercial vehicles and machinery, businesses benefit from an instant reduction in CO2 emissions, with no engine modifications needed.
Certas Energy is committed to driving sustainability in the fuel industry. Contact us to find our more about HVO.
Have you considered HVO for your business?
If your business considering reducing your emissions and looking for alternatives to traditional diesel, HVO provides a real and immediate opportunity to reduce greenhouse gas (GHG) emissions by up to 90%.
Red Diesel FAQs
Red diesel is a type of diesel fuel dyed red to indicate its status as a rebated fuel, subject to lower tax rates. It’s chemically similar to standard (white) diesel but is intended for specific uses, primarily in off-road machinery.
The price of fuel changes daily due to influences from the global oil market, so it’s impossible to publish fixed prices online. The quantity and location of the customer can also have an impact on Red Diesel/Gas Oil prices, so it’s best to request a quote from a reputable supplier to check what the current price is.
Certas Energy is proud to be a leading supplier of Red Diesel in the UK and we strive to offer our customers a great price. As bulk Gas Oil suppliers, our infrastructure, network and buying power enables us to provide a competitive, reliable service to cater to our customers’ needs. Call us today on 0345 600 4040 or request a quote online.
As of April 2022, red diesel usage is restricted to certain sectors, including:
- Agriculture, horticulture, fish farming, and forestry
- Rail transport
- Non-commercial heating and electricity generation (e.g., state schools and hospitals)
- Community amateur sports clubs and golf courses
- Marine craft (with specific regional exceptions)
- Travelling fairs and circuses
For a comprehensive list of permitted uses, please refer to the latest UK government guidelines.
No, a licence is not required to purchase red diesel. However, you must be an eligible user and complete an RDCO (Registered Dealer in Controlled Oil) form upon purchase. It’s essential to buy red diesel from an HMRC-registered supplier.
Yes, red diesel can degrade over time. When stored correctly, it can last up to 12 months. To maximise its shelf life:
- Store in a dry, cool environment
- Use appropriate fuel additives to prevent bacterial growth and water contamination
For guidance on suitable additives, consult with a fuel specialist like Certas Energy.
To reclaim tax on red diesel, you can complete the HO27 form. The amount reclaimable depends on the quantities purchased and their specific uses.
HM Revenue and Customs (HMRC) and police authorities are responsible for monitoring red diesel usage. They may conduct spot checks by testing fuel tanks for the presence of red dye. Misuse can lead to significant fines, vehicle seizure, and prosecution.
Yes, in the UK, gas oil is another term for red diesel. It’s also referred to as tractor diesel or rebated fuel.
Red diesel can be purchased from designated fuel distributors like Certas Energy or at marinas for permitted marine use. It’s not available at standard fuel stations due to its restricted usage.
Certas Energy offers several advantages for red diesel supply:
- Reliable Nationwide Delivery: We supply red diesel across the UK with flexible delivery options.
- Competitive Pricing: Flexible payment options and credit terms, as well as competitive red diesel prices.
- Reputable Supply: As red diesel is heavily regulated, it’s important to buy bulk supplies from a reliable, specialist supplier.
- Fuel Management Solutions: Including bulk storage tanks and telemetry monitoring to track fuel levels.
Following the 2022 fuel duty reforms, red diesel use has been restricted in certain industries. Businesses should always check HMRC guidelines to ensure they are using gas oil legally.
Need help with fuel compliance? Our team is here to provide expert advice.
We provide hassle-free red diesel delivery across the UK, ensuring your fuel arrives when and where you need it.
- Bulk Red Diesel Supply: Flexible volumes for businesses of all sizes.
- Nationwide Fuel Delivery: Rapid response to keep your operations running.
- Fuel Storage Solutions: Bunded fuel tanks and telemetry monitoring to manage fuel levels efficiently.
We understand that fuel reliability is critical. That’s why we offer scheduled fuel deliveries to minimise downtime and keep your business moving.
Speak to our Red Diesel experts
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