How it works

The system works by turning pure distilled water into hydrogen molecules which pass through the air intake of an engine and out through the exhaust system, stripping the built-up excess carbon that leads to poor running issues. This allows your engine to breathe more freely and restores the power and economy which all combustion engines lose over time.


Emission test before and after 40min Engine Carbon Clean

2006 BMW 320i Petrol Before After % Improvement
Carbon Monoxide 0.40 0.09 78%
Hydrocarbons (ppm) 299 68 77%
Nitrogen Oxides (ppm) 26 0 100%
Engine Carbon Clean BMW 320i engine

Our Technology

Our technology is based on innovative engineering expertise in the use of hydrogen as a renewable and environmentally friendly solution for reducing vehicle emissions to assist in meeting global green energy requirements.

The Engine Carbon Clean service is suitable for any petrol or diesel engine, mobile and static, and has been tested on an extensive range of vehicles: from cars, trucks light comercials, motorbikes, as well as plant machinery and generators. The use of hydrogen has been proven to substantially reduce emissions and has been tested with independent market leading equipment.


  • Our machines are connected to the engine’s air intake pipe.
  • A metered amount of hydrogen is injected while the engine runs for approximately 40 minutes.
  • The entire inlet system, cylinder head, exhaust manifold and EGR valves, DPF and Turbo Charges are cleansed without any interference or damage to the engine and its components.
  • The unit is safely disconnected and the vehicle is ready to be driven.

This process will work on petrol, diesel or even LPG engines.

This process can be used to clean ANY petrol, diesel or LPG engine no matter what it is in, e.g. car, motorbike, bus, tractor, tank, generator, lawnmower, etc.

Do a carbon clean before the remap as you will then get a remap on to a clean car
(definitely if you are having a custom map).
No chemicals. We only use Hydrogen gas, Oxygen gas, and the heat from the
combustion process.

No. The hydrogen does not reconstitute back into water.

Not all the gas is consumed in the combustion chamber. A mixture of 66% hydrogen ignited with 33% oxygen in lab conditions would indeed just produce water with nothing left over – the stoichiometric ratio would have to be perfect for this to occur. Any shift in the ratio of gases would leave either unreacted hydrogen or oxygen. Hence with a different gas ratio, plus the interaction with the petrol/diesel combustion process means not all the gas is consumed.

We don’t pump them, we allow the natural vacuum of the intake to draw the right amount of gases required for the engine size.

It cleans the air ports to it but can’t be sure how much carbon is there beforehand. The procedure will have a cleaning effect to some degree, but some residual carbon may be left depending upon the level of build-up. Typically with a direct injection car, especially a VW/Audi FSI engine, then the engineer may split the process into two cleans, punctuated with a spirited drive in between to remove as much as is possible.

No, but we recommend owners use good quality fuels, and we strongly recommend adding an approved fuel cleaning system to the tank during the cleaning process.

We have great success cleaning turbos as long as the issue is down to carbon build-up. If the issue is mechanical then no clean will fix it and indeed a failed turbo where the only thing holding it together is carbon build up will thus be exposed.

The system will clean the cats, but be aware that if a cat is already breaking up inside that cleaning them out may accelerate this process as the carbon build-up may be acting like a glue holding them together.

We have great success cleaning DPFs although this may take additional time depending upon how badly they are blocked. If the DPF has been left and is so blocked that there is no flow of gas then the process may not be able to unblock them.

The process will still clean wherever the gas can get to, so obviously if the EGR valve is blocked off then it won’t be able to clean it.

No. The hydrogen does not reconstitute back into water.

Depending on the size of the vehicles engine, approximately between 60-105 litres during a 40min cycle.

This is a service to remove carbon build-up. If your vehicle has a pre-existing issue or fault which is being masked by the carbon build up and perhaps the carbon is the only thing still holding a part together, (e.g. a failing catalytic converter) then the removal of the carbon will expose the issue.

Hydrogen is a non-corrosive gas so it is not detrimental to any component within the engine. It only targets carbon build-up.