You'll call it a miracle. Ampco vapor lubricator

(c) 1948

You'll see, hear and feel an instant change in your motor! Immediately after we install an Ampco on your motor, you'll see the carbon and combustion residues blown right out with the exhaust and deposited on the road. You'll hear a new, silky smoothness in your motor you never dreamed of. You'll feel the surge of extra power and ideal performance possible only in a motor free of carbon-and-gum clogged upper cylinders, rings and valves.