Our engine anti-wear protective agent contains dipropylene glycol methyl ether and sodium pyrophosphate. It can prevent engine aging and oxidation. Its usage method is very simple: 1. Turn off the engine and wait for it to cool down. Check the oil level. 2. Open the fuel tank cap， pour in an appropriate amount of anti-wear protective agent， and then tighten the filling port cap. 3. Start the engine and let it idle for a few minutes to allow the protective agent to mix thoroughly with the engine oil. 4. Drive for short distances to ensure the engine operates normally. And it can reduce vibration and noise. Enhance the stability of the engine， increase its power output， and improve the driving experience.