AdBlue in 10 questions and answers: what every driver should know diesel
Did you know that in the coming years much of diesel engines marketed will have to adopt the technology AdBlue? Did you know the AdBlue technology requires recharging a new additive and certain peculiarities in its maintenance should know?
New emission standards, new anti-pollution technologies, more systems than the driver should be aware when carrying out maintenance of your car. If you are a customer of diesel cars, and in the coming years are going to renew your vehicle, you better get familiar with the name AdBlue. In recent months we have witnessed the arrival of a host of models equipped with engines Euro VI, a gradual implementation that will be completed gradually until all of them comply with legislation which will force many diesel fit thanks to the AdBlue technology.
Definitely. If you do not know it's the AdBlue we recommend you follow this guide we have prepared to clarify some doubts, details that is important to know, especially if you plan to buy a diesel in the coming years.
Why the need for AdBlue?
The only solution they will find many manufacturers to overcome the Euro VI emission standards in their diesel will be the use of a system and AdBlue additive type.
There was a time when the automotive industry a common goal of reducing CO2 emissions, responsible, among other things, the greenhouse was set, and according to many experts, global warming. Concern about CO2 and commitments to reduce emissions from cars are still present, but in the process, along with other substantive reasons that are irrelevant, diesel gained popularity. That was when he entered another concern at stake, the NOx, other contaminants associated with the combustion of diesel very harmful to health. With the entry into force of the Euro VI regulations, Europe will also put encirclement to NOx emissions, so that the AdBlue will become, in many cases, the only solution to neutralize much of these polluting gases and continue marketing diesel vehicles although cleaner than those manufactured to date.
Let's talk about chemistry, what is AdBlue?
AdBlue is not toxic, but corrosive. Be careful not to spill it on the body of your car.
We will not go into details too deep, but the impact will be widespread use of AdBlue in our driving habits or maintaining our car. AdBlue is the trade name of an aqueous urea solution in a percentage of approximately 32.5%. Urea is a chemical compound present mainly in the urine. AdBlue is not toxic, but corrosive. With which we will not take risk when handling, but we must take certain precautions and ensure that the body of our car does not come into contact with the liquid and carefully wipe up any accidental spills.
Do all diesel use from now AdBlue?
With few exceptions, it is normal that the most powerful and larger vehicles have to resort diesel inexorably to this additive.
Fortunately not, but a large percentage of them. The ability of a manufacturer to get their diesel engines exceed the Euro VI without this additive will depend on its technology. Making a very rapid generalization, we see how some small displacement engines in small passenger not require AdBlue system and are able to receive the Euro VI homologation with a physical catalyst - called NOx trap - synthesizing much of their emissions . Generally, the more powerful and larger vehicles, diesel require the use of AdBlue.
As I mentioned, the solution used will depend on the technology of the brand. In the market there are large vehicles with diesel engines over 2 liters of displacement, capable of overcoming the Euro VI without AdBlue. The best example is Mazda, who have managed to reduce NOx without using AdBlue with pingües improvements in combustion engines. Needless to say, mechanical simplicity is a virtue and less likely to reliability problems. A car exceeds the Euro VI without AdBlue system should at least be a point in its favor.
What is AdBlue system?
The implementation of the device depends on each manufacturer. AdBlue is essentially an additive and as such requires a system that provide and make use of it. This additive is not mixed with gasoline, but in a cylinder located at the exit of the exhaust gases along with other catalysts (or incorporated into them) and the particulate filter. In that device the AdBlue is sprayed to achieve a chemical process by which the gases at high temperatures cause the AdBlue generate ammonia and this decomposes the molecules of NOx into nitrogen and H2O (water), which are logically less harmful to health and environment.
Háblame maintenance, what I care if my car uses AdBlue?
AdBlue does not require special habits in our driving, as do require, and very few people know, other antipollution systems such as particulate filters. But obviously we are talking about an additive, which therefore is depleted and requires periodic refills. Buyer of a modern diesel, it is important to see if it is compatible with the Euro VI in which case if you use the additive AdBlue.
The brand itself should inform you recharge periods, which in most cases they correspond to periods of car maintenance, that is, with oil changes, filters and periodic review.
How do I know if the AdBlue tank is running low?
Although many manufacturers choose to design their engines to recharge periods AdBlue match maintenance periods, that maxim is not always fulfilled, or even our own driving style could cause the tank you drain prematurely. All car use AdBlue must incorporate a sensor detects that the additive is exhausted and contact us for convenient recharging. In discussions with various manufacturers we conclude that they leave a very comfortable margin to avoid problems. It is important to know how our car, but generally low level warning AdBlue is not as urgent as the low fuel level, at least we should have room to travel hundreds of kilometers.
What if the AdBlue tank is completely exhausted? Will my car? Does the engine spoil?
Bad news for those who neglect maintenance periods of your car. As we told you at the time when the AdBlue level is low, and more than enough margin, the car unit will send a warning to recommend us to recharge the additive. If we ignore the warning and continue to circulate until completely draining the tank, our car will fault mode and will stop working. Again this is the information you have sent us manufacturers. There seems no risk of failure, but the car would stop working simply because without AdBlue not meet the specifications for which it was approved.
Can I recharge myself AdBlue tank?
Generally manufacturers place the loading mouth AdBlue tank with the loading mouth of the fuel tank. Since years the AdBlue additive is widely used in commercial vehicles and transport, you will have no problem finding a supplier of AdBlue at a nearby gas station. The manufacturer will give you more details, but in many cases emergency bottle is provided with a narrow nozzle so that we fill in a service station and later the deposition us turn in our car without spills.
What is the price of AdBlue? How much does it cost to recharge the tank?
AdBlue consumption is very small compared to the cost of fuel and almost negligible in comparative terms. The price of a liter of AdBlue does not reach the price of a liter of diesel. On the cost of recharging in periodic reviews, it is best to consult with the brand and workshop trust, although a price about 30 or 40 euros could be a reference in most cases.
What determines the consumption of AdBlue? What I can do to save AdBlue?
Firstly, there is no methodology for economical driving practice saving AdBlue. We know that AdBlue consumption depends on the parameters chosen to neutralize the exchange gases and NOx under specific conditions, such as heavy use in town, or in sports conditions (see circuit), AdBlue consumption may be higher He specified by the brand.
Examples of Euro VI diesel cars that use, or not, AdBlue
By going back to some of the tests we have done lately, we find some cases of Euro VI diesel engines that require (or not) and AdBlue brand policy we tell you about it.
- In the case of Opel and the new 1.6 CDTI 110 and 136 HP, we know that neither Astra, Meriva and will require AdBlue. With the same engine the Zafira Tourer does need an AdBlue device whose recharge should match maintenance periods.
- The new Mazda 3 and Mazda 6 employ diesel engines with high cubic capacities Euro VI for power. Still, improvements in combustion control have made no need to use AdBlue device type. Curiously, the first vehicle AdBlue led a server, and also one of the first to be sold in Spain long before the arrival of the Euro VI regulation, was the Mazda CX-7. The reason that led Mazda to implement this system without law by which oblige them to do so, was probably the concern that was already imposed in many countries to the problems of pollution generated by diesel.
- Mercedes Class C diesel engines with BlueTec, AdBlue required. Mercedes-Benz confirmed that the size of the deposit has been optimized to match recharge maintenance periods.
- The Volkswagen Golf TDI Sportsvan with 150 hp engine meets the Euro VI, but its development Volkswagen has achieved an AdBlue device is not necessary. With more powerful motors and other larger bodies which may exist need for AdBlue. As they arrive Euro VI models to dealers we go knowing.
My opinion about AdBlue
The cost of maintenance and charge AdBlue system we have seen that is not too high compared to the overall vehicle. But I do think a factor, although not determinative, it is interesting when buying a car. It's more, If you should decide your purchase between a Euro V diesel and AdBlue Euro VI diesel, eventually you should benefit more from the second. You have to think in the very near future the environmental situation and the issue of emissions will harden him to pay more for parking fees in Madrid is not the tip of the iceberg.
The important thing, as clients, is that we are aware of the technology that equips our car, and the peculiarities of this. Know that there are alternatives that not all diesel Euro VI is because using AdBlue system and diesel is not always our best choice. It is also important that brands and marketers properly inform their customers. And of course, that as drivers, we know the maintenance required by our car.
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