Wynn's Diesel Turbo Cleaner is a chemical treatment for all diesel engines that clears blocked turbochargers. It removes carbon build-up from the turbine and frees sticking vanes without the need for dismantling. This 325ml bottle removes deposits (oil and unburned fuel particles) from the Diesel Oxidation Catalyst (DOC) and has a good cleaning effect on the EGR valve. It improves combustion, reduces soot emissions, re-establishes engine power and throttle response, and extends the life of the turbo and the Diesel Oxidation Catalyst. It is harmless for all after-treatment systems. To use, add one bottle to the fuel tank, treating up to 60 liters. Use every 3000km or every 3rd tank.