The Lucas Oil 10576 is a set of four safeguard ethanol fuel conditioners with stabilizers in a 16 oz size. The product is designed to clean injectors, valve seats, and combustion chambers, while also stabilizing the fuel and preventing varnish and gum formation in gasoline and ethanol. It combats deposits and protects from alcohol combustion. The product comes with a bundle listing and is suitable for performance/custom fitment types. The manufacturer part number is 10576 and it is made in the United States.