Xtreme Diesel Emission Reducer (Clean Burn)

Use before every MOT emissions test (U.K.)

Wynn's Xtreme Diesel Emission Reducer is a fuel treatment for diesel engines, which reduces black smoke formation and harmful exhaust emissions.

  • Improves the combustion and increases the amount of oxygen in the combustion chamber.
  • Reduces the formation of black exhaust smoke, especially soot particulates in diesel engines.
  • Increases the engine performance and improves fuel economy.
  • Quietens diesel-knocking noises.
  • Cleans the injectors and the combustion chamber.
  • Improves the vaporization of the fuel and the fuel/air mixture.
  • Lowers the formation of harmful NOX gases during the combustion, as it removes the isolating fouling material in the combustion chamber.
  • Harmless to turbochargers, catalytic converters and soot filters.


For use with all diesel engines with or without turbocharger, catalytic converter and DPF.


Add entire contents of one bottle to a minimum of 20 litres of diesel fuel.
Use before every MOT emissions test (U.K.). Drive 100 miles (160 km) before taking vehicle for a MOT test (at official vehicle inspection station).
For best results, use every 3rd tank filling.
Bottle is also suitable for capless fuel fillers.


PN 67969 – 12x325 ml - EN



The fuel system of a car is highly engineered and extremely sensitive to contamination. This contamination can increase engine noise, exhaust emissions, fuel consumption and reduce lubrication and engine power. Using Wynn’s Fuel treatments on a regular basis will help keep the fuel system clean and the engine operating efficiently, reducing your fuel consumption and cutting harmful emissions drastically. It will save you money and it is good for the environment!