Frequently asked Questions

questions sur le décalaminage

Generally, a car running on diesel fuel tends to accumulate carbon at a faster rate compared to a gasoline-powered car, mainly due to the fact that diesel combustion generates a greater amount of waste.

Aussi, puisqu’une partie des gaz d’échappement de votre véhicule est réinjectée après combustion dans votre circuit d’air, il y a progressivement un dépôt de résidus de combustion. C’est ce qui forme la calamine, la solution pour cela est le décalaminage.

Throughout the treatment period, the machines employed by Dcarbonize effectively eliminate approximately 75% of carbon deposits.

Subsequently, the advantages persist for the subsequent 6 months after the procedure, as the decarbonization process modifies the residual carbon, which will eventually be emitted as mildly polluting gases.

Over time, carbon deposits will gradually build up in the engine once more. This is why it is important to reiterate decarbonization procedures on an annual basis.

Dcarbonize’s machines are primarily beneficial for cars (it's advised to undergo decarbonization after reaching 20,000 km and then every 15,000 km thereafter).

A session with Dcarbonize typically takes between 30 to 90 minutes, depending on the engine's size. Our machines come with different power capacities to cater to your vehicle's requirements.

Before being introduced to the market, our machines underwent testing by the Veritas office.

Additionally, we collected numerous positive testimonials from a network of 1200 mechanics and entrepreneurs who utilized our machines.

Their feedback consistently highlighted improvements in engine power, enhanced driving experiences, and reduced fuel consumption.

Après cette période, la calamine se déposera de nouveau dans votre moteur, voila pourquoi il faut faire un décalaminage tous les 6 mois.

L’efficacité des machines Dcarbonize est la même pour chaque véhicule. En revanche, le ressenti en termes de puissance de moteur, de souplesse de conduite et de gain de consommation en carburant à l’issue de notre intervention, varie en fonction du type de véhicule mais aussi du style de conduite. Pour les petits moteurs de voitures, il est conseillé d'utiliser des machines adaptées.

Through the removal of carbon deposits, Dcarbonize effectively cleans the car's air system, leading to a harmonized air-to-fuel ratio during the combustion process. In the absence of carbon deposits, this ratio remains balanced at a 50/50% intake. Conversely, in situations where the engine is obstructed by deposits, higher fuel consumption would result.

A mechanic's assessment will provide insight into the reasons behind your car's failure to start and the necessary steps for resolution. If the mechanic identifies an engine blockage, they may suggest carbon cleaning. In such cases, they would likely recommend a decarbonization procedure.

Clearing a particle filter necessitates a specific type of intervention. Nevertheless, engaging in regular decarbonization helps prevent unexpected issues and prolongs the lifespan of the particle filter.

This is particularly significant considering that the particle filter is one of the more expensive components of your engine, costing between 1,500 and 3,000€.

It is not a standard procedure and should only be replaced if deemed necessary.

Hydrogen decarbonization doesn't necessitate mechanical interference and is completely aligned with your warranty. This enhances the sustainability of your vehicle.

Adding an oil additive to your fuel tank will not influence your injection circuit or your air circuit. Similarly, you could opt for "premium" fuel that already includes these additives.

However, if your goal is to enhance your engine's performance comprehensively, opting for decarbonization is the most effective choice.

An engine operates by combining air and fuel. This process exclusively relies on the air ducts within your vehicle, without involving the fuel pipes.


The introduction of hydrogen during this process is adequate to cleanse the engine.


While methods involving oil additives do exist, they solely target the fuel system, as liquids cannot access the air intake of your engine except for specific component removal.

The ventilation system ensures that there is no risk of your engine overheating.

Carbon is expelled through the EGR valve, and accelerations prompt the opening of this valve.

At slow speeds, it only opens to around 5%.

Accelerations are crucial as they facilitate the maximum evacuation of carbon buildup.

We suggest undergoing carbon cleaning with every oil change or technical inspection to ensure a comprehensive assessment of your engine's condition.

Decarbonization with hydrogen is a relatively recent scientific discovery, that emerged only twelve years ago. To learn more about it, you can explore our blog for additional information.