As only 25% of each liter of fuel is used to generate actual performance, the remaining 75% is wasted by mostly generating heat, contaminated gasses and carbon deposits/residue.  Carbon (soot, scale and sediment) is hydrocarbon olefin residue that remains in a vehicle’s engine and form deposits in and on the intake, valves, injectors, cylinder, pistons, exhaust gas recirculation system (EGR), diesel particulate filter (DPF), EGR valve, catalytic converter (CAT), lambda sensors (O2-sensor), exhaust housing, turbine wheel and vanes inside a turbo and a vehicle’s exhaust system when fuel (petrol or diesel) burns inside an engine due to the combustion process. This residue changed into a hard-black shell in high temperature conditions and it is called carbon (soot, scale and sediment) deposit. Carbon build up over time creating obstructions within the internal parts of the engine and is not easily detectable as a visual inspection of the outside of an engine will not show signs of carbon build up. These carbon obstructions can result in engine power loss and an increase in fuel consumption, but if left unattended, it can cause engine failure and a costly repair bill.


This is what carbon build-up in an engine looks like:



The following are common symptoms such as loss of power, vehicle is not performing well, rough idle, detonation, hard to start, engine noise, misfiring, high fuel consumption and/or excessive exhaust fumes (smoke). These are caused by a dirty intake, valves, oxygen sensors (O2-sensor), injectors, EGR valve, DPF filter, EGR valve, catalytic converter, turbo vanes, turbine wheel and/or exhaust system. 


The only effective solution is to remove the excessive carbon deposit built-up from the vehicle’s engine. By doing this, you will ensure that your vehicle’s engine run and breathe more freely, making the engine quieter, smoother and more efficient.


Carbon deposit built-up over a period of time/usage in the modern vehicle’s engine and negatively effects the engine’s efficiency. This will decrease engine performance, increase fuel consumption, results in misfire, rough idling, engine noise and increase fuel consumption. It is therefore important that a carbon cleaning process is followed at regular intervals to ensure optimal efficiency and to protect the engine. Ideally, carbon flush should be done annually or every 15000km. If this is not followed, the carbon deposits might be such that a more intensive/invasive process, called Walnut blasting, is required to clean the intake/valves which is a more time-consuming process and necessitates the removal of the intake manifold in order to de-carbon the intake and valves. The latter will be more costly than doing regular carbon flush maintenance.


Carbon deposit built-up is removed from the engine intake, valves, pistons, cylinder, injectors, turbo vanes and turbine wheel and housing, O2-sensors, DPF/EGR/CAT/EGR and exhaust system thus restoring life back to the engine, protect critical engine parts from excessive wear and extends engine life. The engine will run smoother, eliminates misfires caused by sticky valves/carbon built-up, performance will be restored/increased (kw and torque), exhaust fumes (smoke) will be less, emissions will be reduced and fuel economy will increase.


The process is quick, efficient and effective.


There are basically three options available to removing carbon deposits from a vehicle’s engine.


The first option is to dismantle the vehicle’s engine and to physically scrape/sandblast the engine parts clean to get rid of the carbon deposits. This is the way it was done many years ago but it is time-consuming, labour intensive, high cost and the potential is there to damage/harm engine parts in the process. Technology has advanced and with the modern engine, safer, faster and better alternatives were developed in recent times.


The second option is to remove the intake and follow the process of Walnut-blasting in order to clean carbon deposits from the intake and valves.


Crushed Walnut shells/powder is a pure natural polish material that will clean the intake and the intake valves thoroughly but with no possibility of causing any damage or harm to any of the parts. A special machine sprays the crushed Walnut shells/powder to clean the intake and valves whilst the used Walnut powder and carbon deposits removed from the intake and valves are recycle by vacuum in a closed loop from the vehicle’s engine back to the machine.  The process is very effective and will not harm or damage any engine components or parts.


The third option is to do regularly (annually/every 15000km) a Carbon Flush with an Oxy-Hydrogen Carbon Cleaning machine. The Carbon Flush cleaning machine is developed to clean carbon deposits from the vehicle’s engine without dismantling any parts from the engine.


This option is suitable for all vehicles/engines (petrol or diesel) and is an effective, low cost and ideal way to prevent carbon built-up/deposits if done regularly (annually/every 15000km) as part of preventative maintenance to avoid expensive repairs.