Since , the British Standard for Industrial Fuel Oils, BS, contains two grades of Gas Oil; Class A2 & Class D. The Class A2. Gas Oil BS Class A2. Gas Oil is a distillate fuel manufactured to give clean burning, maximum heat output and efficient combustion in boilers and off-road. Free download of BS – the fuel specification data sheets for Red diesel, gas oil and Red Diesel / Gas Oil 10ppm Specification Sheet (BS Class A2).

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Sulphur Limits on Fuel Explained | Crown Oil UK

Since white road diesel DERV was already ULSD compliant at this time, it is often believed that the specifications for red diesel and white diesel have been identical since the regulation change, but the potential for the two differences — cetane and bio components remain. Class A2 gas oil may be used for either application. It can also be used in a diesel engine fuelling off-the-highway equipment such as farm tractors, construction equipment, railway and marine engines, and stationary diesel engines or generators.

Has Gas Oil specification changed? It is published by the European Committee for Standardization and it describes the physical properties of the fuel.

Gas Oil is a “dual purpose” fuel. We use cookies to ensure that we give you the best experience on our website. BS red diesel was split into two different categories. John Deere, in particular, specify that fuel used within their engines must comply with the higher BS EN white road diesel fuel specification in order to guarantee performance and avoid cass warranties.

It has a high calorific value heat content and is thus recommended as a boiler fuel in industrial or agricultural installations with clasx jet burners e. Gas Oil is a middle distillate liquid refined from crude oil. Nothing on this specification, or in this article, constitutes a guarantee. CPS Fuels Gas Oil meets the same BS EN specifications as white road clasz and is therefore suitable for use in all farm machinery without the need for fuel treatments or additives.

Gas Oil is permitted for use in Tractors, hence Tractor Diesel, and on Farms, hence Farm or Agricultural Diesel, and is marked with a red dye to reflect this.

What is Gas Oil? CPS Fuels Information Sheet

So what is my Gas Oil now? Gas Oil supplied from September onwards is winterised.


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We will expand on this later. EN is the current standard for all automotive diesel fuel sold in the European Union member states. Back to the news. Since the change is legislation, and because the majority of Gas Oil used in the UK cllass into a Agricultural and Commercial markets to power engines, UK refiners and importers have focused on supplying the UK with diesel which meets the highest possible required European standard EN What’s the British Standard for Gas Oil?

So init became a requirement that all fuel used in off-highway mobile machinery must comply with EU Ultra Low Sulphur Diesel ULSD regulations, and must therefore contain no more than 10mg of sulphur per kg of fuel. It has many different names in the UK and a variety of uses. However, if you would like to, you can change your cookie settings at any time.

The Class A2 specification is suitable for both diesel engines and furnace applications whilst the Class D specification is only suitable for furnace applications such as boilers, dryers and roadstone coating plants, but not suitable for diesel engines.

For further information xlass the fuels supplied by Crown Oil, please see our fuel products page. Both our suppliers, and CPS Fuels, reserve the right to alter the specification without notice.

In the Government changed their legislation as a result of EU pressure to decrease off highway emissions. It can be called: It was introduced to partner the European emission standards as part of the drive for a cleaner environment. A European Fuel Quality Directive was set out in which stated that as of 1st Januaryb2s869 non-road mobile machinery should only contain up to a maximum of 10 milligrams of sulphur for every kilogram of fuel used 10 ppm or 0.

From a consumers perspective most applications can use Class A2 without any cost or performance implications. The sulphur content for class A2 diesel is 0. The red excise marker in red diesel is present to show that the fuel is subject to a different taxation category to the one which is applied to diesel white diesel used in road vehicles. Environmental Legislation has demanded cleaner fuels with less harmful emissions and the British Standard for Gas Oil has changed specification to meet this.

The sulphur content of class D diesel is 0.

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Class A2 covered all off-road vehicles, including trains and tractors. You can also order fuel by filling in our fuel quote form or speak to our friendly fuel experts on The red dye contains chemical markers in accordance to Customs and Excise requirements and so its illegal use can be easily detected. There are just two of the reasons why there has been a need to significantly reduce the sulphur contents of fuels.

Gas Oil has a lower cetane rating, so may have a lower energy yield than the DERV vehicle diesel alternative. The other type of red diesel clsas class D which is used for sea-going marine vessels, stationary engines, static generators and heating boilers.

As very few engines or burners can now legally use Class D fuel, the fuel industry has concentrated on making, storing, and distributing Class A2. There are two recognized standards of Gas Oil that are currently in use: Road fuels, Petrol and Diesel have high duty rates applied to them, but other non-road fuels have lower or clasa duty rating applied.

Why is Gas Oil Red? This is one of the main reasons why red diesel is lower in cost when compared to road diesel. Class A2 has a maximum sulphur content of 10ppm and is used for off road vehicles and equipment, while Class D has a maximum sulphur content of ppm and can only be q2 for heating or static generators.

The higher the cetane rating the shorter the ignition delay. Sulphur was identified as one of the most harmful components of Gas Oil, but was historically needed as a lubricant within the fuel. As Gas Oil is a form of diesel it can be used in diesel engines to provide propulsion or generation.

In the UK it was found that some modern tractors suffered from poor performance because they were running Class A2 Gas Oil whereas they were designed to operate on fuel that met the higher BS EN white road diesel fuel specification.

A lot of the confusion around Gas Oil, and the variety of different names, bs269 come both from its variety of different uses, and changes to product specification over the last few decades.