Shield Diesel Injector Cleaner Is A Hight Quality Solution Designed To Improve The Performance Of Diesel Engines By Effectively Cleaning The Fuel System. This 350 Ml Bottle Contains A Powerful Formula That Helps Remove Deposits; Carbon Build Up; And Other Contaminants From The Fuel Injectors; Ensuring Efficient Fuel Delivery And Combustion Cleans Fuel Injectors To Help Protect Against Injector Deposits Build Up And Oxidation