Since the introduction of Euro 6 emissions standards in 2015, new diesel cars in Australia are required to meet stricter emission limits to control harmful pollutants. Euro 6, a global emissions standard, specifically targets the reduction of nitrogen oxides (NOx), harmful gases that diesel engines produce. Under Euro 6, the allowed nitrogen oxide emissions for diesel cars have been cut by approximately 67%, with a maximum limit of 80 mg/km.
This regulation has pushed automakers to adopt AdBlue technology in their diesel vehicles to comply with these stringent standards. But what is AdBlue, how does it work, and which cars in Australia use it? In this guide, we’ll dive deep into how AdBlue reduces vehicle emissions, what car brands in Australia rely on it, and why it’s essential for modern diesel engines.
What is AdBlue?
AdBlue is a specially formulated diesel exhaust fluid (DEF), composed of urea and deionised water. It is stored in a separate tank in diesel vehicles and is critical for the proper functioning of Selective Catalytic Reduction (SCR) systems found in most modern diesel engines.
When the engine runs, AdBlue is injected into the exhaust stream where it reacts with nitrogen oxides (NOx). This process breaks NOx down into nitrogen and water vapor, significantly reducing the vehicle’s harmful emissions. Without AdBlue, most diesel engines wouldn’t meet Euro 6 standards, and the environmental impact would be much greater.
How Does AdBlue Work?
AdBlue is crucial for reducing the environmental impact of diesel vehicles. It works through the SCR (Selective Catalytic Reduction) process. When the engine burns diesel, nitrogen oxide (NOx) is produced as a byproduct. The SCR system injects AdBlue into the exhaust stream, where the urea in the fluid decomposes into ammonia due to heat. This ammonia reacts with nitrogen oxides, converting them into harmless nitrogen and water vapor.
This process dramatically lowers NOx emissions, enabling diesel cars to meet the stringent requirements of Euro 6 and ensuring a cleaner environment. Importantly, AdBlue doesn’t get mixed with the vehicle’s diesel fuel – it has its own dedicated tank.
Why Do Diesel Cars in Australia Use AdBlue?
AdBlue is essential for all modern diesel vehicles because it ensures that they comply with Euro 6 emissions standards. Without AdBlue, diesel engines would emit high levels of NOx, which contributes to air pollution, smog, and acid rain. Australian car manufacturers and importers have been using AdBlue in their vehicles since the introduction of Euro 6 standards to reduce these emissions.
By injecting AdBlue into the exhaust system, cars are able to reduce NOx emissions by up to 90%, making diesel engines much more environmentally friendly. The use of AdBlue is one of the primary reasons why diesel cars can still be sold in markets with strict environmental regulations like Australia.
What Cars in Australia Use AdBlue?
In Australia, a wide range of diesel vehicles across different brands use AdBlue to comply with Euro 6 standards. Popular diesel models that require AdBlue include cars, SUVs, utes (utility vehicles), and trucks. Below are some of the most well-known vehicles that rely on AdBlue technology in Australia:
- Ford Everest: This SUV uses AdBlue to meet the emissions regulations and typically requires an AdBlue refill every 12,000 to 16,000 kilometres.
- Volkswagen Amarok: This diesel ute is another popular choice that uses AdBlue for cleaner emissions.
- Mercedes-Benz GLE: Mercedes’ luxury diesel SUVs, including the GLE, come with AdBlue systems.
- BMW X5: BMW’s X5 diesel models also rely on AdBlue for emission control.
- Audi Q7: Audi’s large diesel SUVs, like the Q7, use AdBlue to reduce nitrogen oxide emissions.
- Mitsubishi Pajero: This 4WD diesel vehicle uses AdBlue technology to ensure it meets emission standards.
These vehicles represent just a small sample of the many diesel cars in Australia that use AdBlue. Brands such as Toyota, Nissan, Jeep, Land Rover, and Hyundai also use AdBlue in their diesel models, especially in larger vehicles like utes, trucks, and SUVs.
How Much Does AdBlue Cost in Australia?
One of the concerns for diesel vehicle owners is the cost of maintaining AdBlue levels. Fortunately, AdBlue is relatively inexpensive. In Australia, the price typically ranges from $1.50 to $3.00 per liter, depending on where you buy it. Many petrol stations, car service centers, and automotive retailers stock AdBlue. Additionally, it’s possible to buy AdBlue in bulk online at a lower cost.
The amount of AdBlue consumed by a vehicle varies depending on the model, engine size, driving conditions, and load. On average, most vehicles use about 1 litre of AdBlue per 1,000 kilometres. For example, a Ford Everest typically requires an AdBlue refill every 12,000 to 16,000 kilometres, depending on the driver’s usage. It’s essential to keep an eye on your AdBlue levels, as running out could cause your vehicle to switch to a limp mode or even refuse to start.
Maintaining Your AdBlue System
For diesel cars, maintaining the AdBlue system is crucial for both engine performance and legal compliance with emissions regulations. Vehicles equipped with AdBlue typically have a dashboard warning light that alerts drivers when fluid levels are low. Drivers should top up their AdBlue tanks as soon as they receive these warnings to avoid performance issues.
It’s also important to use only certified AdBlue products. Using non-certified or impure AdBlue can damage your vehicle’s SCR system, leading to costly repairs. Most car manufacturers recommend purchasing AdBlue from trusted retailers or service stations to ensure you’re using the correct fluid for your vehicle.
AdBlue and Environmental Impact
AdBlue plays a critical role in reducing the environmental impact of diesel vehicles by cutting nitrogen oxide emissions. Nitrogen oxides are a significant contributor to air pollution, which can lead to respiratory issues, smog formation, and acid rain. By converting nitrogen oxides into harmless nitrogen and water vapor, AdBlue helps diesel vehicles meet the Euro 6 emissions standards and protects the environment.
In Australia, the adoption of AdBlue technology has allowed diesel cars to remain viable while meeting strict environmental regulations. The reduction in nitrogen oxides helps improve air quality, particularly in urban areas where vehicle emissions are a major source of pollution. If you’re thinking of upgrading to a more eco-friendly vehicle, consider using cash for cars Brisbane to get top value for your old diesel car.
The Future of AdBlue in Australia
As emissions standards continue to evolve, the use of AdBlue in diesel vehicles is expected to grow. While the global automotive industry is moving toward electric vehicles (EVs) and hybrids, diesel engines remain a key part of Australia’s transport sector, particularly for commercial vehicles, utes, and large SUVs. As a result, AdBlue will continue to be a vital component in reducing harmful emissions from these vehicles.
In the coming years, advancements in SCR technology and AdBlue systems may lead to even more efficient emissions reduction, ensuring that diesel vehicles can comply with increasingly strict environmental laws.
Conclusion: Why AdBlue is Essential for Diesel Cars in Australia
AdBlue has become an indispensable part of diesel vehicle technology in Australia, helping cars, utes, and trucks meet the Euro 6 emissions standards. For vehicles like the Ford Everest, Volkswagen Amarok, Mercedes-Benz GLE, and Audi Q7, AdBlue ensures that diesel engines can run efficiently while reducing harmful nitrogen oxide emissions.
If you own a diesel vehicle in Australia, understanding the role of AdBlue and maintaining proper fluid levels is essential for the longevity and compliance of your vehicle. Regularly checking your AdBlue gauge and topping up the fluid will ensure your vehicle continues to operate within environmental standards, benefiting both your car’s performance and the planet.
By staying informed about AdBlue systems, you can ensure that your diesel vehicle remains both efficient and environmentally friendly for years to come. Now, if you have an old car that doesn’t function with AdBlue systems, consider getting rid of it through cash for cars Brisbane and contribute to a greener environment.