MAG1 Gas Treatment is a concentrated fuel-system additive intended to remove varnish, gum and carbon buildup from injectors, intake ports and combustion areas. It is typically added to the fuel tank prior to refueling and used periodically to help restore engine smoothness, reduce rough idling and support fuel economy. Check the product label for compatibility, exact dosage instructions and safety information. Keep out of reach of children and store away from heat and open flame.