Cleaning fluid for diesel injection systems, it is used through JetClean Plus unit. It reduces CO and CH in exhaust gases and reduces smokiness. The fluid has passed tests for compliance with the international norms. It cleans nozzles and fuel systems in general from formed deposits. It eliminates coking of the rings, increases compression. It prevents formation of soot and deposits on nozzle needles. It optimizes combustion process and the engine gets power and acceleration again.