Modern engines run at increasingly higher temperatures. This, combined with the increasing regularity of stop-and-go driving, cause rapid depletion of critical oil additives. Without these protective additives, severe engine oil oxidation occurs. Oxidation reduces oil to heavy, black sludge in the crankcase, oil screens, oil passages, rocker arms and other critical areas of the engine. BG MOA fortifies all qualities of engine oil, providing superior, long-lasting engine protection and maintain peak engine performance. It prevents engine oil oxidation and thickening under even the most intense driving conditions. When installed by a professional, it keeps engine components clean to help extend engine life and reduce cost of operation. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.