QUICKLY CLEANS AND LUBRICATES DIESEL FUEL INJECTORS. REMOVES      CARBON DEPOSITS FROM COMBUSTION CHAMBERS, RESTORES PERFORMANCE, SMOOTHES ENGINE IDLE, REDUCES EXHAUST EMISSIONS, IMPROVES COLD STARTING AND HELPS PREVENT COSTLY REPAIRS. COMPLIES WITH FEDERAL LOW - SULFUR CONTENT REQUIREMENTS AND CATALYTIC CONVERTER AND OXYGEN SENSOR SAFE.