What are Euro 6 Engines?

Significant advancements have been made in Co2 emission regulations since the first legislation in 1992. Initially, the Euro 1 engine standard allowed 780mg/km of NOx, but fast forward to 2020, and the regulations have become much stricter, demanding emissions be capped at just 80mg/km. 

This stringent standard plays a crucial role in reducing toxic fumes in the air, which contribute to acid rain and respiratory diseases. Initially, diesel engines were thought to be safer than petrol ones due to their lower Co2 emissions. However, further research revealed NOx, not Co2, was the main contributor to environmental damage. Petrol engines emit less NOx but more Co2 than diesel ones, creating a complex challenge. This discovery tarnished the reputation of diesel vehicles.

Today, when considering a new van deal, it’s vital to understand these environmental impacts. The latest EURO 6 engines represent a significant step forward in balancing these concerns, offering a more eco-friendly choice for both businesses and the environment.

This article details the evolution of Co2 emission regulations and the environmental impact of different engine types, linking it to the decision-making process involved in choosing a new van.

Euro 6 Engine Standards in New Vans for Sale

The introduction of the new Euro 6 engine standards has marked a significant achievement in vehicle emissions control. As a mandatory requirement from September 2015, these standards have brought about substantial benefits. When considering a new van deal, it’s important to understand how these advances impact both environmental sustainability and vehicle performance. The new engines not only meet stringent emission regulations but also enhance the efficiency and effectiveness of vehicles in today’s market. This makes Euro 6 vans an ideal choice for those seeking eco-friendly and compliant options in their new purchase. 

Reduced Co2 Emissions – When you buy a new van adhering to Euro 6 standards, you benefit from diesel engines that emit 25% less Co2 than petrol ones. This not only contributes to environmental conservation but also offers financial advantages. Since road tax depends on Co2 emissions, choosing to buy a new van with a Euro 6 compliant engine can lead to considerable savings, both in terms of taxes and in reducing your carbon footprint.

Increased Efficiency and Fuel Economy – The stringent Euro 6 regulations have compelled manufacturers to focus on building more fuel-efficient engines. This leads to long-term cost savings for those who buy a new Euro 6 van. Improved fuel efficiency translates to fewer trips to the gas station and, consequently, a decrease in the overall environmental impact of fuel transportation.

Built For The Future – Vans that comply with the new Euro 6 standards, particularly those manufactured after September 2015, are future-ready. Older diesel engines face extra charges in areas like London, where these vehicles incur a £12.50 charge in ultra-low emission zones as of April 8th, 2019. This significant fee makes it financially wise to opt for a Euro 6 compliant vehicle when you buy a new van.

Key Features to Consider When Buying a New Van

Selective Catalytic Reduction (SCR)

A vital feature to look for when you buy a new van is the Selective Catalytic Reduction system. This system uses a reductive agent, commonly known as AdBlue, which is injected into the diesel exhaust. A catalyst then triggers a chemical reaction, converting harmful emissions into water and nitrogen, which are naturally expelled through the exhaust.

Diesel Particulate Filter (DBF)

Made mandatory post-Euro 5 standards, the Diesel Particulate Filter is an essential component in modern diesel engines. This filter captures particulate matter, which is then burned off when the vehicle reaches higher speeds, such as on a motorway. This feature is crucial for reducing emissions and is a standard in the latest models you might consider when planning to buy a new van.

Exhaust Gas Recirculation (EGR)

This method involves mixing exhaust gases with intake air to lower combustion temperatures, effectively reducing the production of harmful compounds. The Engine Control Unit (ECU) adjusts the EGR system based on the engine speed or load. This advanced technology is another significant aspect to be aware of as you explore options to buy a new van, ensuring you choose a vehicle that not only meets your needs but also complies with modern emission standards.

Understanding AdBlue in Euro 6 Diesel Vans

AdBlue plays a critical role in meeting Euro 6 diesel engine standards, but what does it mean for van owners? One implication is the need for an extra tank for AdBlue, which could slightly reduce the payload capacity by about 30kg to 80kg. It’s crucial for van owners to regularly top up their AdBlue to the recommended levels specific to their vehicle, with costs varying between £8 and £20 per litre depending on location.


The rate at which your van consumes AdBlue largely depends on the type and size of the vehicle. Smaller vans tend to be more efficient, with a litre of AdBlue lasting for about 700 miles. However, for larger vehicles, this efficiency can decrease significantly, dropping to around 250 miles per litre.


While these factors are important to consider, the benefits of using AdBlue in Euro 6 diesel engines are substantial. If you’re still weighing the pros and cons, here are some key points to help you understand why opting for a Euro 6 diesel van can be a smart decision:


  1.  Reduced Emissions: AdBlue significantly lowers the amount of harmful NOx emissions from diesel engines, contributing to a cleaner environment.
  2.  Improved Air Quality: By converting NOx into harmless nitrogen and water, AdBlue helps improve air quality, particularly in urban areas.
  3. Compliance with Emission Standards: Use of AdBlue ensures that your van complies with the stringent Euro 6 emission regulations, avoiding potential fines and restrictions.
  4. Fuel Efficiency: Although larger vans may see a decrease in AdBlue efficiency, overall, the system helps maintain better fuel efficiency in Euro 6 engines.
  5. Long-Term Cost Savings: Despite the initial cost of AdBlue, the long-term benefits include reduced environmental impact fees and potentially lower fuel costs.
  6. Enhanced Engine Performance: AdBlue can contribute to the overall performance and longevity of your diesel engine by reducing the strain caused by emissions.
  7. Resale Value: Vans with AdBlue systems and Euro 6 compliance may have a higher resale value due to their eco-friendly features.
  8. Future-Proofing: As emission regulations become stricter, having a Euro 6 compliant vehicle with AdBlue technology ensures your van stays relevant and usable in various areas, especially in low-emission zones.


Investing in a Euro 6 Compliant Van

At Citroen Van Sales, we pride ourselves on offering a wide range of Euro 6 compliant vans for sale, each meticulously maintained to uphold the highest standards. Our commitment to quality and customer satisfaction is reflected in the positive feedback and reviews we’ve received from past clients. We’re dedicated to providing you with a top-tier Euro 6 van that meets your needs and exceeds your expectations. Explore our van deals today and let us help you find the perfect Euro 6 van for your requirements. Interested? Get in touch with the team today.  

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