Diesel Flush

Advanced diesel injector cleaner

Syntix Diesel Flush is an advanced cleaner specifically designed to instantly eliminate deposits from the diesel injectors, injection pump and combustion chambers. As a result, this additive significantly enhances fuel injection and improves the overall performance of diesel engines.


  • Smooth and efficient engine performance with less noise and vibration
  • Increases engine power and dynamics
  • Improves engine reliability
  • Reduces smoke and toxic emissions (CO₂)
  • Immediate results


  • Effectively removes deposits from injectors, injection pump and combustion chambers
  • Actively cleans the injectors, improving engine performance and reliability
  • Improves fuel and fuel/air mixture vaporisation
  • Helps keep the EGR system clean
  • Does not damage or affect catalytic converters and Diesel Particulate Filters


Suitable for use as a preventative or problem-solving treatment. Diesel flush is compatible with all types of diesel engines in passenger cars, trucks and heavy duty diesel equipment, including the latest generation of direct injection engines with CRD, TDI, JTD, HDI, EGR, Diesel Particulate Filter and catalyst.


Preventive maintenance 

When replacing the diesel fuel filter during a routine engine service, add Diesel Flush to the reservoir or filter housing.


  • Disconnect the fuel supply and return from the high-pressure fuel pump. The diesel fuel filter is the most common access point for this.
  • Pour Diesel Flush into a container.
  • Run the engine with the Diesel Flush additive at various RPMs.
  • When most of the additive is used and the remaining fluid turns dark in colour, the cleaning treatment is complete.
  • Reattach the fuel supply hoses and replace the diesel fuel filter.

500 ML BOTTLE – REF. A1515500
12 X 500 ML PACK

1L BOTTLE – REF. A0563001
6 x 1L PACK

Diesel Flush - Professional Diesel Injection Cleaning Additive - Syntix Innovative Lubricants