Prolong Super Lubricants PSL13032 Oil Stabilizer - 1-Quart Bottle is fortified with an advanced lubrication technology that assures that nothing works better than Prolong Oil Stabilizer to help solve lubrication-related problems. Other oil stabilizers on the market do not include the necessary additives provided by today's motor oils, such as antioxidants. When these other oil stabilizer products are added to a vehicle instead of motor oil, the engine is robbed of 20-25-Percent of vital additives. The formulation of Prolong Oil Stabilizer includes AFMT (Anti-Friction Metal Treatment) advanced technology as well as vital additives to provide a completely formulated oil stabilizer product, which sets this product apart from other competitors. To achieve maximum protection and performance it is recommend that Prolong Engine Treatment is added with every oil change.