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Smoking Diesel, High Fuel Consumption – Clean Diesels

Black Smoke

Black smoke is purely due to engine pollution. Often black smoke comes out of the exhaust during a cold start, acceleration and sometimes even idle.

Blue Smoke

Blue smoke is primarily burnt oil. Blue smoke also mainly comes after cold starts, acceleration and almost always when stationary.

Why do I have to clean my engine?

When an engine is contaminated it will damage the engine. It increases the wear of the engine block and takes care of the black smoke from the exhaust. Blue smoke means that oil is burned. This can be a cause of contamination if the engine is so contaminated that it burns oil, which should normally cause lubrication. Cleaning the engine not only ensures less wear and tear, but generally also makes the car run more economically. A better combustion can take place and because the pollution is gone it also costs the engine less effort.


The first thing is fuel so you have to add an additive to the fuel. An additive cleans everything the fuel passes so it cleans one part of the engine and all parts fuel passes.

  • Cleans injectors and valves
  • Cleans pipes and fuel tank
  • Emulsifies with water and moisture
  • Cleans the fuel pump
  • Cleans the injectors or injectors
  • Cleans pistons and piston rings
  • Cleans the cylinder head
  • Cleans outlet valves and valve stems
  • Cleans the Lambda sensor
  • Cleans Turbo
  • Cleans Catalystic converter

These are the properties of Speed Cleaner


The second your engine needs is air. So you have to use an aerosol which cleans the engine this way and for diesels this is the most effective way it’s called Top Engine Cleaner. You will see from the moment you inject it into the air intake all pollution comes out with the exhaust. This works for diesel and petrol cars but isn’t without any risk. The best and safest way to have it done is by a mechanic. A diesel with a small engine will start running on higher rpm when you spray it in the air intake so don’t spray it all in at once. A petrol car has a signal wire which you don’t want to hit.

DIESEL Engines: 

  • Cleans if necessary. throttle valve present
  • Cleans the inlet valves and valve stems
  • Cleans the pre-combustion chambers
  • Cleans vacuum-controlled exhaust manifold valves
  • Cleans the intake manifolds
  • Cleans pistons and piston rings
  • Cleans the cylinder head
  • Cleans turbo blades

After using this method, your engine is cleaned by the air inlet and fuel.

Cleaning by the fuel for heavily polluted Diesels and gasoline engines:
Tecflow Speed Cleaner

Not very contaminated diesel engines or for maintenance on diesel engines:
Tecflow Clean Up 201

Not very contaminated gasoline engines or for maintenance on gasoline engines:
Tecflow Clean Up 101

For cleaning through the air inlet:
Tecflow Engine Cleaner

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