We all know that the grease will not be used up immediately after being opened, and there will be a lot left. If the rest is not stored properly, the properties of the grease will be invalid, so the storage of the grease after opening is very important. The grease manufacturer will tell you how to store the grease after opening?

　　1. Oxygen

　　Greases consist of base oils and additives. Although base oils are generally relatively stable, the key additives in grease are much less reliable, and grease is very susceptible to chemical changes when it encounters oxygen in the air. Especially in the natural environment with sunlight, the additives are mildewed, which greatly reduces the anti-oxidation and cleaning properties of the grease.

　　2. Impurities

　　Impurities critically affect the cleanliness of the grease. The infiltration of impurities into the grease will affect the actual lubricating effect of the grease, and even cause abnormal damage to the engine, thereby affecting the sealing properties of the grease.

　　3. Water

　　Under normal conditions, the moisture content of the grease just produced by the grease manufacturer is below 0.03%. When the moisture content exceeds 0.1%, the additives in the grease will fail, and the whole process of air oxidation of the grease will be accelerated. The citric acid converted by the air oxidation of grease and the acidic oxides in the organic exhaust gas discharged from the engine react with water and are converted into strong oxidants. This acid promotes corrosion on the engine.

　　Therefore, when there is more water in the grease, the lubricity of the grease will decrease, and the viscosity will decrease, which will cause premature mildew of the grease and corrosion of parts; security incident.

　　Storage of grease after opening:

　　1. Store the grease immediately after opening the package. After maintenance in the 4S shop or repair shop, the grease bottle plug should be screwed on immediately. It must be noted that because the original tin foil film has long been destroyed, the remaining cover pad has limited barrier effect. At this time, a clean plastic film can be used to cover the bottle stopper. There are standard ones that can also be sealed by dripping wax on the outer cap of the bottle stopper.

　　2. After the grease bottle is sealed, it must be stored in a dry and cool area, and ensure that sunlight is not easy to irradiate, so as to prevent the grease inside from producing redox reactions.

　　As long as the grease is stored well, the service life of the grease can be effectively extended for better use next time, and the storage of the grease can also avoid unnecessary waste.