What is Red Diesel?

Red diesel is a gas oil that was traditionally used in equipment other than road vehicles such as in agricultural and construction equipment. Used for heating non-commercial premises, backup generators, ships, boats, railways, digging machines, the fuel was relied upon as a cheaper alternative to regular diesel.  

How is Red Diesel different to other diesel?

Also called rebated gas oil, red diesel is a type of fuel that has a red dye added to it which helps distinguish it from other fuel types. Diesel fuel that is not red has a yellowish colour and is often known as white diesel. 

Before its complete restriction, the red colouration made it possible for officials to identify red diesel and track its progress through the supply chain. For example, HMRC officials may have carried out spot checks on vehicles if they suspected the use of red diesel. Apart from the colour, red diesel is the same chemically as normal diesel. 

As red diesel was often used in older and less efficient machinery, emissions were mostly higher as they did not have the same emission control standards found in newer machinery out in the market today.    

Why has Red Diesel been banned?

The phasing out of red diesel has not only been down to the millions in lost tax revenue each year, the prohibition of rebated gas oil is also an initiative from the government to reduce the high-sulphur content in fuels, helping to improve air quality whilst ultimately meeting the emissions targets set out by the EU.    

What happens if I use Red Diesel illegally?

You could in theory be charged, fined or even end up in prison. We don’t recommend taking any risks! The legalities of using red diesel in a generator are thorough with unauthorised use of it resulting in hefty fines.  

Can I still use some left-over Red Diesel in my generator?

Unfortunately, any red diesel left over in stock is no longer legal to be used. Any red diesel used after April 1, 2022 will have a payable duty attached. 

Can I use white diesel in my generator?

White diesel can still be used to fuel your generator. As it has a lower sulphur content it can be used in any engine, including your generator. 

What are the other alternative fuels to use in a generator?

There are a range of alternatives to red diesel that are great for fuelling your generator. From renewable fuels such as HVO or Hydrotreated Vegetable Oil, to Biofuels derived from organic material, today’s power marketplace has a range of alternatives that will help reduce emissions whilst ensuring your business also remains compliant.  

Rehlko – Here to Help

At Rehlko we can help you with all your diesel and generator requirements. With so many factors to consider when choosing the right generator for your business, you can trust in us to help you with all your queries. Our experience in working with critical power is unrivalled, providing an all-in-one infrastructure that utilises 40 years of experience and knowledge.  

To find out more about the best type of fuel to power your generator, including all the services available to support you before installing your genset, speak to one of our expert engineers today.  We’d be more than happy to help!