Diesel Carbon Cleaner

Carbon is one of the silent enemies of diesel engines. It affects performance, increases pollutant emissions and can lead to costly breakdowns if not dealt with in time. For garages, offering an internal cleaning service with a diesel charcoal cleaner has become an excellent business opportunity: profitable, technical and in high demand.In this article we explain in depth what carbon deposits are, how to detect them, what solutions exist, how to use them correctly and what is the best option for your workshop.

What is carbon deposits in diesel engines?

Carbon is the carbon residue that is generated during incomplete combustion of diesel fuel. This substance adheres to internal engine components such as the intake, EGR valve, injectors, combustion chamber or particulate filter (DPF/FAP). The progressive accumulation negatively affects engine performance and can eventually lead to mechanical failure.

Causes of carbon build-up

Among the main causes are driving at low revolutions (common in the city), short distances, poor quality fuel and failures in the EGR system or injection. These factors prevent correct combustion, generating residues that the engine cannot eliminate on its own.

How to detect excess carbon in the engine

Common symptoms

Lack of power or slow acceleration.
Increased fuel consumption.
Dark smoke from the exhaust.
Unusual vibrations or irregular idling.
Engine failure light on.

Diagnostic tests

The use of electronic diagnostic tools (OBD), borescopes for internal inspection or exhaust gas analyzers helps to confirm the level of carbon build-up and in which areas it is affecting the most.

Types of carbon cleaners: Which one to choose?

There are several solutions on the market, each with different levels of effectiveness, cost and applicability. Here are the three most common methods in workshops:

Fuel additives

Advantages: economical, easy to apply, helps in preventive maintenance.
Disadvantages: limited effectiveness, they do not act on critical areas such as EGR or intake.
Recommended for: basic maintenance and vehicles with low accumulation.

Intake cleaners

Advantages: localized cleaning without disassembly, immediate effect on EGR valve and intake manifold.
Disadvantages: requires application with a hot engine and certain precautions.

Intake cleaner

Professional HHO decarbonizers

Advantages: complete cleaning of the engine without disassembly, removal of carbon deposits from the combustion chamber, turbo and even DPF. Fast, environmentally friendly and cost-effective for the workshop.
Disadvantages: higher initial investment, but very quick return.
Recommended for: workshops looking for premium services with high loyalty.

Equipment such as the Oxyhtech NOVA and Oxyhtech ULTRA work with oxyhydrogen (HHO) technology, eliminating carbon deposits quickly, ecologically and cost-effectively for the workshop.

More information!

How to use a diesel carbon cleaner

Step-by-step instructions

If you opt for a professional solution such as the Oxyhtech decarbonizer, these are the standard steps:

Performs an initial diagnosis.
Connect the machine to the engine intake.
Starts the 30-minute cleaning cycle with the engine idling.
Monitor the parameters in real time if your model allows it.
It ends with a road test or post-cleaning diagnostic.

Recommended frequency of use

Cleaning is recommended every 20,000 to 30,000 km or according to vehicle use. In workshops, offering this service as preventive maintenance builds customer loyalty and reduces breakdowns.