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Gas Oil (Red Diesel)

When your machinery, equipment or heating relies on gas oil, keeping fuel on site and ready to use matters.

Also known as red diesel, gas oil is used across a range of permitted applications, including agriculture, horticulture and some commercial heating and machinery uses.

At Rix Petroleum, we've been supplying farms and businesses with fuel since 1927. Whether you need a one-off delivery or regular fuel supply, our local teams can help keep you moving.

What Is Gas Oil (Red Diesel)?

Gas oil, also known as red diesel, is a type of diesel fuel used in eligible off-road machinery, agricultural equipment and certain commercial applications.

It is dyed red to distinguish it from standard road diesel (DERV) and is subject to different fuel duty rules. Its use is restricted to qualifying purposes under UK regulations.

At Rix Petroleum, we supply gas oil to farms and eligible businesses across our UK depot network, with knowledgeable teams available to help you arrange your fuel deliveries.

Where Is Gas Oil Used?

  • Agriculture

    Gas oil continues to be widely used for eligible agricultural machinery and equipment, helping farms keep essential operations running.

  • Horticulture

    Eligible horticultural businesses can use red diesel for permitted machinery and equipment.

  • Machinery & Equipment

    Red diesel can also be used in certain eligible off-road machinery and equipment, depending on how and where it's being used.

Gas Oil or White Diesel?

Gas Oil (Red Diesel)

Gas oil and red diesel are the same fuel. Red diesel is generally used in eligible agricultural machinery, off-road equipment and other qualifying applications. Its use is restricted under UK fuel duty regulations.

White Diesel (DERV)

White diesel is the standard diesel used in road vehicles, including HGVs, vans and diesel-powered cars. It is also used in equipment and operations where red diesel is not permitted.

Not sure which fuel you need? Contact your local Rix depot for guidance on the fuel options available for your operation.

Find out more about White DieselContact your local depot
Agricultural tractor working in a field alongside an HGV on the road, illustrating red diesel and white diesel applications

Upgrade to Gas Oil+

Looking for enhanced performance from your agricultural machinery or eligible off-road equipment?

Gas Oil+ combines our standard gas oil with a specialist additive package designed to help support fuel system cleanliness and dependable engine operation.

Speak to your local Rix depot to find out more about Gas Oil+ and whether it's suitable for your machinery.

Ask about Gas Oil+
Blue tractor cultivating a field, representing gas oil used in agricultural machinery

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Why Choose Rix for Your Gas Oil?

  • Local Fuel Supply

    Our network of local depots helps us provide fuel deliveries to farms and businesses across the areas we serve.

  • 100 Years of Experience

    Rix has been supplying fuel since 1927, giving our customers the reassurance of an experienced fuel supplier.

  • Our Own Tanker Fleet

    Our tanker fleet helps us manage deliveries directly from our depots to your site.

  • A Team You Can Talk To

    Need to discuss quantities, deliveries or your fuel requirements? Your local Rix team is only a phone call away.

Ordering Gas Oil from Rix

Whether you're planning ahead or watching your tank level, we'll help make arranging your next gas oil delivery straightforward.

Tell us where you need your fuel delivered and how much you require, and we'll provide a quote based on your requirements.

For businesses and farms that use gas oil regularly, our team can also discuss your ongoing fuel requirements and account options.

Get a gas oil quoteFind your local depot
Rix Petroleum team member speaking with a customer about their fuel requirements

Gas Oil FAQs

  • Is gas oil the same as red diesel?

    Yes. Gas oil and red diesel are the same fuel. The name 'red diesel' comes from the marker added to the fuel to distinguish it from standard road diesel.

  • Who can use red diesel?

    Red diesel can only be used for specific purposes and by eligible users.

    The rules depend on how and where the fuel is being used, so if you're unsure whether your machinery or equipment qualifies, check the latest government guidance before using red diesel.

  • Can I use gas oil in a road vehicle?

    Red diesel generally cannot be used to fuel vehicles for ordinary road use.

    There are specific exceptions within the regulations, so you should check the current eligibility rules if you're unsure about a particular vehicle or application.

  • What's the difference between gas oil and diesel?

    Gas oil, or red diesel, contains a red marker and is subject to a lower rate of fuel duty because its use is restricted to eligible applications.

    White diesel is the standard diesel used in road-going vehicles and isn't subject to the same usage restrictions.

  • Can I get regular gas oil deliveries?

    Yes. If your farm or business uses gas oil regularly, speak to your local Rix depot about your fuel requirements and arranging ongoing deliveries.

  • How much gas oil can I order?

    The amount you need will depend on your storage capacity and how quickly you use your fuel. Contact your local Rix depot with your requirements and our team can help arrange a suitable delivery.

Gas Oil Safety & Technical Information

Gas oil should always be stored and handled correctly. If you're responsible for storing fuel on site, make sure your tank and associated equipment are suitable, maintained and meet the requirements relevant to your site.

For detailed product, handling and safety information, you can view the latest Gas Oil Safety Data Sheet.

View Gas Oil Safety Data Sheet (PDF)Browse All Safety Data Sheets

Need Gas Oil for Your Farm or Business?

Whether you need a regular supply or a one-off delivery, our local teams are here to help.

Complete the form below with your requirements and your local Rix depot will be in touch to discuss your fuel needs.