For cleaning the exhaust gas recirculation (EGR) valve
Eurol EGR Cleaner is developed for removing excess carbon deposits from the inside of EGR valves. These are installed in vehicles to reduce NOx emissions. If the EGR valve is stuck in the closed position, the engine will have excessive NOx-emissions and automatically reduce power. The aerosol can be used for cleaning the EGR valve to smooth a rough idle or hesitant acceleration and to reduce knocking.