Regan Brown
AdBlue is an additive used in many new diesel cars to reduce emissions of harmful nitrogen oxides. It is injected into the exhaust gases and burnt at high temperatures, releasing ammonia, which converts dangerous chemicals into nitrogen, water vapour, and CO2. AdBlue is composed of deionized water and high-purity urea, and while it is non-toxic and non-flammable, it is corrosive and should not be mixed with diesel fuel.
| Characteristics | Values |
|---|---|
| What is AdBlue? | An additive used in many new diesel cars |
| How does it work? | It is injected into the exhaust gases and burnt at very high temperatures to break down harmful nitrogen oxides |
| Is it a fuel additive? | No, it should not be mixed with diesel at all |
| What is it made of? | 32.5% high-purity urea and 67.5% deionised water |
| Is it toxic? | No |
| Is it flammable? | No |
| Is it corrosive? | Yes |
| Is it odourless? | Yes |
| Is it safe for humans? | Yes, but it can irritate the skin and eyes |
| What happens if it is put in the diesel tank? | It can cause costly damage to the engine, fuel tank, pump, and injection system |
| What to do if it is put in the diesel tank? | Do not start the engine, get a professional to drain the tank, and get a trained mechanic to check for damage |
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What You'll Learn
AdBlue is a non-hazardous liquid that is corrosive
AdBlue is injected into the exhaust gases and burnt at very high temperatures to break down harmful nitrogen oxides. It is a key component in improving public health by reducing smog and acid rain. It is a legal requirement for Heavy Goods Vehicles (HGVs) that use diesel and for diesel engine cars that are fitted with SCR.
AdBlue is sold by petrol stations, garages, motor accessory shops, online retailers, and even some supermarkets. It is available in various-sized containers, typically ranging from 1.5 to 10 litres. The price can fluctuate based on the cost of urea production, which requires a lot of energy, usually in the form of natural gas.
It is important to know where the filler point for AdBlue is located in your vehicle. Usually, there is a small blue filler cap next to the main diesel filler, but it may also be in the boot or under the bonnet. Keeping AdBlue topped up is as simple as refilling a window washer reservoir, but it is important not to spill it, as it can irritate the skin and eyes and damage paintwork.
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AdBlue is an additive used in many new diesel cars
AdBlue is injected into the exhaust gases and burnt at very high temperatures, releasing ammonia. This ammonia acts as a catalyst, converting dangerous chemicals into nitrogen, water vapour, and CO2—all of which are harmless to our lungs and the atmosphere. This process is known as selective catalytic reduction (SCR). It is important to note that AdBlue should never be added directly to diesel fuel and will never come into contact with it. Instead, it is dispensed into a separate tank in the vehicle.
Many modern diesel vehicles, including models from Ford, Volkswagen, Renault, Citroen, BMW, Audi, Mazda, and Toyota, now require the use of AdBlue to meet tough emission standards. For example, Ford's Everest and Transit Custom models utilise AdBlue to help reduce emissions. The AdBlue tank filler is typically located next to the diesel fuel filler and has a blue cap.
It is important for drivers to regularly check and refill their AdBlue levels. Running out of AdBlue can cause the vehicle to stop running, requiring a refill to restart. While AdBlue is considered non-hazardous, it is corrosive, so it is important to wash off any spills on the body or car paintwork. Additionally, AdBlue should never be put into the diesel tank as it can cause costly damage to the engine, fuel system, and other components.
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AdBlue is injected into exhaust gases to break down harmful nitrogen oxides
AdBlue is a highly purified diesel exhaust fluid (DEF) with the official name AUS32, which stands for Aqueous Urea Solution 32.5%. It is composed of deionised water (67.5%) and high-purity urea (32.5%). Urea is a chemical compound that is widely used in a variety of applications, including fertilisers, animal feed, and the production of plastics and other industrial products. AdBlue is injected into the exhaust gases of diesel engines and burnt at very high temperatures to break down harmful nitrogen oxides. This process is known as selective catalytic reduction (SCR).
AdBlue is not an additive to diesel fuel and should never be mixed with diesel. It is designed for the SCR system in the vehicle exhaust and is dispensed into a completely separate tank from the diesel fuel tank. If AdBlue is accidentally added to the diesel tank, it can cause costly damage. AdBlue is corrosive and can corrode the pipework and components in the fuel system. This can result in thousands of pounds worth of damage and require a professional to drain the tank, flush out the system, and carry out repairs.
AdBlue is a legal requirement for Heavy Goods Vehicles (HGVs) that use diesel above a certain weight, as well as for some diesel cars that are fitted with SCR technology. It helps these vehicles meet tough Euro 6 emissions standards that regulate the level of harmful emissions exiting a vehicle's exhaust. By using AdBlue, dangerous chemicals are converted into nitrogen, water vapour, and CO2, which are harmless to the lungs and atmosphere.
The AdBlue tank is typically located near the diesel fuel tank and must be kept topped up by the driver. The frequency of refills depends on vehicle use, load carried, and driving style. AdBlue is available for purchase at petrol stations, garages, motor accessory shops, and even some supermarkets. While it is non-toxic, it can irritate the skin and eyes and damage paintwork, so it is important to wash off any spills.
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AdBlue is stored in a separate tank to diesel fuel
AdBlue is a highly purified diesel exhaust fluid (DEF) that helps diesel engines meet tough Euro 6 emissions standards. It is composed of deionised water (67.5%) and high-purity urea (32.5%). It is injected into the exhaust gases and burnt at very high temperatures to break down harmful nitrogen oxides.
AdBlue is not added to diesel fuel and will never come into contact with it. It is designed for the Selective Catalytic Reduction (SCR) system in the vehicle exhaust and is dispensed into a completely different tank to the diesel. The SCR system is used in many new diesel cars, trucks, buses, agricultural and plant equipment, as well as some passenger cars.
AdBlue is stored in a small tank and must be kept topped up by the driver. The AdBlue tank filler is usually located next to the diesel fuel filler neck and has a blue cap. The capacity of the AdBlue tank varies depending on the vehicle, with some vehicles having a capacity of 18L and others having a capacity of 21L.
It is important to note that AdBlue should not be mixed with diesel as it is not compatible with many materials and can cause costly damage. If AdBlue is accidentally added to the diesel tank, it is recommended to not start the engine and to get a professional to drain the tank and dispose of the contaminated fluid safely.
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AdBlue is composed of deionised water and high-purity urea
AdBlue is a highly purified diesel exhaust fluid with the official name AUS32, which stands for Aqueous Urea Solution 32.5%. It is composed of deionised water (67.5%) and high-purity urea (32.5%). Urea is a chemical compound with a wide range of applications, including fertilisers, animal feed, and plastics production.
AdBlue is designed to meet the latest Euro 6 exhaust emission regulations and is essential for improving public health. It is injected into the exhaust gases and burned at high temperatures to break down harmful nitrogen oxides. This process, known as selective catalytic reduction (SCR), converts dangerous chemicals into nitrogen, water vapour, and CO2, which are harmless to the lungs and the atmosphere.
AdBlue is stored in a separate tank from diesel fuel and is automatically injected into the vehicle's exhaust system. It should not be mixed with diesel as it is not a fuel additive. Accidentally adding AdBlue to a diesel tank can cause costly damage to the engine, pipework, and fuel system.
AdBlue is a non-toxic, non-flammable, and odourless solution. However, it is corrosive, so it is important to wash any spills from the body or car paintwork. The price of AdBlue can fluctuate based on the cost of urea production, which requires significant energy, often in the form of natural gas.
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Frequently asked questions
AdBlue is a highly purified diesel exhaust fluid (DEF) with the official name AUS32, which stands for Aqueous Urea Solution 32.5%. It is composed of deionised water (67.5%) and high-purity urea (32.5%).
AdBlue is injected into the exhaust gases and burnt at very high temperatures to break down harmful nitrogen oxides. It is never directly added to the diesel fuel and will never come into contact. AdBlue is designed for the Selective Catalytic Reduction (SCR) system in the vehicle exhaust and is dispensed into a completely different tank to the diesel.
AdBlue is a legal requirement for Heavy Goods Vehicles (HGVs) above 7.5 tonnes or a diesel engine car that’s fitted with Selective Catalytic Reduction (SCR).
AdBlue is sold by petrol stations, garages, motor accessory shops, online retailers and even some supermarkets. It is typically available in 1.5, 5 and 10-litre containers. To refill your tank, simply locate the AdBlue filler cap, which is usually next to the diesel filler cap, unscrew the cap and pour in the AdBlue solution.
