This fuel additive from LIQUI MOLY is formulated to effectively clean injectors, intake valves, and combustion chambers. By removing deposits, it helps restore optimal fuel atomization and combustion efficiency. Regular use of LIQUI MOLY 21704 can lead to improved engine performance, smoother running, and potentially better fuel economy. It also provides protection against corrosion within the fuel system. Suitable for use in both gasoline and diesel engines, this additive is an easy way to maintain the cleanliness and health of your fuel system. Simply add it to your fuel tank as directed for optimal results.