Can be added to gas or oil. Combats internal motor rust and corrosion. Lubricates valves piston rings and upper cylinder walls. Eliminates valve sticking. Keeps rings free and reduces piston and cylinder wear. Keeps fuel pump and carburetor parts clean. Eliminates the need for frequent adjusting. Retards the formation of power dissipating motor deposits such as gums varnish and sludge. Comes as a 6 pack.