StarBrite Tron 095712 Carbon Eliminator, 11.75-Ounce Formulated with the latest technology deposit control compounds, plus a proprietary enzyme package specifically developed to remove even the toughest deposits Formula uses enzyme technology to remove carbon, gum and varnish deposits Free sticky rings to improve performance, reduce fuel consumption, restore power and extend engine life Provides quick, D-I-Y removal of engine deposits Easy to use; spray directly into carburetor or air intake