Additives are useful,Lubricating oil manufacturerSpeaking, the real high quality lubricants are manufactured products with a variety of automotive engine maintenance functions, and the secret formula has a variety of additives, including anti-wear agents, and the lubricating oil pays attention to balance to ensure the full use of a variety of properties。Filling other additives not only can not produce additional maintenance for the car, but it is easy to reflect with the compounds in the automobile oil, resulting in the reduction of the comprehensive performance of the automobile oil。