AdBlue - What Is It? - Why Use It?

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AdBlue is a diesel fuel additive that has been introduced to help eliminate the harmful emissions released by diesel vehicles. Using AdBlue actively improves performance and reduces emissions in diesel vehicles, by breaking down harmful nitrogen oxides.

Keeping your fleet topped up with AdBlue is crucial to maintain compliance and keep vehicles on the road – especially for fleet managers and commercial vehicle operators. The Fuel Store is pleased to offer Bulk AdBlue, allowing you to benefit from regular deliveries and cost efficiencies, while keeping your AdBlue tank topped up.

All Your AdBlue Questions Answered

What is AdBlue?

One of the latest techniques used to clean up diesel emissions is known as selective catalytic reduction (SCR). A liquid is used to treat exhaust gases and remove harmful pollutants, including nitrogen oxides (NOx), of which nitrogen dioxide (NO2) is the most harmful. This liquid is known as AdBlue. It is stored in a tank in the car, but unlike petrol or diesel it is not injected into the engine; instead it is fed into part of the vehicle’s exhaust. A chemical reaction converts the harmful NOx exhaust gases into harmless nitrogen and water.

Why do diesel cars use AdBlue?

Diesel cars produced from late 2015 will most likely have an exhaust treatment system that requires AdBlue. This specially formulated liquid is injected into the exhaust system of the car to help neutralise harmful emissions.

How much Adblue do I need and how long does it last ?

The tank that holds the AdBlue solution varies in size between makes and models of car. As a guide, a Volkswagen Tiguan SUV and Passat family car have a 12 and 13-litre AdBlue tank respectively.

The frequency of AdBlue refills depends on the vehicle's make, model, and usage. Typically, a full tank of AdBlue lasts between 5,000 to 10,000 miles. VW estimates that the Tiguan and Passat use 1.5 litres of AdBlue every 620 miles, and suggests that a tankful of AdBlue gives a driving range of 3,000-4,000 miles for the Tiguan, and 4,000-6,500 miles for the Passat. By contrast, Peugeot estimates that its cars can travel 12,000 miles between refills — the same as its servicing intervals.

Most modern vehicles will alert the driver when the AdBlue level is low.

What happens if I run out of AdBlue?

If a vehicle runs out of AdBlue, it will not comply with emissions regulations and may enter a restricted power mode or fail to start. Most vehicles will provide warnings well before AdBlue runs out.

How should AdBlue be stored?

AdBlue is non-toxic, non-flammable, and safe to handle. However, it can be corrosive to some metals and materials, so it should be stored and handled properly to avoid spills. AdBlue should be stored in a cool, dry place away from direct sunlight and temperature extremes.

Can I use AdBlue in any diesel vehicle?

AdBlue should only be used in diesel vehicles equipped with an SCR system. Using AdBlue in a non-SCR vehicle will not have any beneficial effects and may cause damage.

How can I check the AdBlue level in my vehicle?

Most modern diesel vehicles have an AdBlue gauge or indicator on the dashboard that shows the current level. Additionally, the vehicle’s onboard computer may provide notifications when the AdBlue level is low.

What is the shelf life of AdBlue?

When stored properly, AdBlue has a shelf life of about one year. It is important to keep it in a sealed container to prevent contamination and degradation.

Is AdBlue required for all new diesel vehicles?

Most new diesel vehicles, especially those meeting Euro 6 emissions standards or equivalent, are equipped with SCR technology and therefore require AdBlue. Vehicles failing to meet emission standards, including those related to AdBlue usage, may face fines or bans.

What can I use instead of AdBlue?

All AdBlue products meet specific standards. Do not be tempted to use any other products, or to add anything to AdBlue. Doing so could damage your vehicle's SCR system and result in expensive repairs.

Can I run my diesel vehicle without AdBlue?

The additive is not physically required to run an engine. However, running an engine without AdBlue will cause vehicle emissions to exceed legal levels. To avoid this, many engines will cut out if they run out of AdBlue.

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