1 QUART ENGINE TREATMENTProlong Engine Treatment is formulated with Prolong's AFMT advanced technology to treat the metal surfaces of both gasoline and diesel fueled engines. As motor oil is pumped through the engine, Prolong Engine Treatment molecules interact with all of the metal surfaces, chemically bonding to create a protective layer that reduces damaging friction and heat. Temperature reduction is especially important in today's smaller import and compact engines that