AdBlue is a urea-based fluid that is used in diesel engines to reduce emissions of nitrogen oxides (NOx) in the exhaust gas. It is injected into the exhaust stream and does not directly affect the fuel consumption of the engine. However, in some cases, using AdBlue may have a slight impact on fuel consumption indirectly.
For example, if the AdBlue system is not functioning properly, such as a malfunctioning injector, it can cause the engine to run in a reduced power mode and increase fuel consumption. Additionally, if a vehicle is driven with a low AdBlue level, it may also cause the engine to run in a reduced power mode and increase fuel consumption.
It’s important to ensure that the AdBlue system is functioning properly, and to refill the AdBlue tank as soon as possible, when low, to ensure the vehicle continues to operate normally and meet emissions regulations.
It’s also important to note that the use of AdBlue is mandated by emissions standards and its use may help to reduce emissions of nitrogen oxides (NOx) which is a benefit for the environment and the air quality in the long term, even though it may have a slight impact on fuel consumption.
Dear Mr Thomas Wang ,
Thank you for your article highlighting the effect of Adblue on fuel consumption.
As far as I know, Adblue works on the exhaust gases. It does not work, in any way, on engine. If the whole SCR system is bypassed, then there is no need to fill Adblue in the vehicle. And the engine will work as good as it used to work before BS-IV and BS-VI vehicles (having no SCR system). Technically, there is no change in performance of engine and fuel efficiency, except Adblue helps in reducing NOx emission.
Please guide how Adblue helps in better mileage and engine performance.
Thanking you,
With Regards,
for Royal Blue Chemical
Ruchir Shah (Partner)
Dear Ruchir，
Thank you for your comment.
While AdBlue does not directly contribute to better mileage or engine performance, it plays a crucial role in maintaining the overall efficiency and environmental friendliness of diesel engines.
Here’s how AdBlue helps improve mileage and engine performance:
1.Emissions reduction:
AdBlue is injected into the exhaust system, where it undergoes a chemical reaction that converts harmful nitrogen oxides (NOx) into harmless nitrogen and water.
By reducing NOx emissions, AdBlue helps diesel engines comply with increasingly stringent environmental regulations, which enables manufacturers to develop more efficient engine designs.
2.Improved fuel efficiency:
With the SCR system effectively reducing NOx emissions, the engine can be tuned for better fuel efficiency, as the need for exhaust gas recirculation (EGR) or other NOx reduction strategies is reduced.
This allows the engine to operate at higher temperatures and pressures, which can lead to improved fuel combustion and better mileage.
3.Engine performance maintenance:
The use of AdBlue helps maintain the performance of the SCR system, which is an essential component for the engine’s overall efficiency.
By keeping the SCR system functioning optimally, AdBlue ensures that the engine can continue to operate at its designed performance levels, helping to maintain or even improve engine power and responsiveness over time.
4.Reduced maintenance costs:
AdBlue usage can help extend the lifespan of the engine’s exhaust system components, such as the catalytic converter, by reducing the buildup of deposits and prolonging their effectiveness.
This can lead to lower maintenance and repair costs for the vehicle owner, as fewer replacement parts may be needed over the vehicle’s lifetime.
It’s important to note that the specific impact of AdBlue on mileage and engine performance can vary depending on the vehicle model, driving conditions, and other factors. However, the overall benefits of AdBlue in terms of emissions reduction and engine efficiency make it an essential component for modern diesel vehicles.