How often should automobile gear oil be changed?Gear oil knowledge introduction

　　We know that after the car has driven a certain number of miles, it needs to be maintained.What we often think of is to change the oil. In fact, the gears of automobiles are also part of maintenance. Don't just think about changing the oil. The gear oil should also be changed. How often should the automobile gear oil be changed? Let’s take a look at the gear oil. Knowledge.

　　1. Generally speaking, the gear oil should be replaced every 6 kilometers, which can also effectively improve the efficiency of gear transmission of engine power.

　　2. Selection of viscosity when changing oil. Viscosity is the most basic selection factor for gear oil.If the viscosity is selected too large, the friction surface will be overheated and unnecessary power loss will be caused. If the viscosity is selected too small, the oil will be thrown off the tooth surface due to the centrifugal force, which will easily cause the oil seal to leak, which may be on the gear surface The formation of oil-lean lubrication will increase wear and even cause sintering. Therefore, it is very important to choose a suitable viscosity.

　　3. In order to prevent the tooth surface from scratching, peeling and sintering caused by high stress when the gear is in contact, it is necessary to choose a gear oil with good anti-wear and extreme pressure performance to maintain appropriate load-bearing performance.Therefore, users must not add other oils such as internal combustion engine oil, hydraulic oil, etc. into the gear box when choosing oils, so as to avoid insufficient extreme pressure anti-wear performance and damage to the gears.

　　The related content introduced above, let's take a look at the knowledge of automobile gear oil.

　　Manual gear oil replacement method

　　Most manual gearboxes are equipped with oil level check plugs on the side of the gearbox body. Some models do not have this check plug. When changing gear oil, the two settings are somewhat different.

　　(1) The method of changing gear oil for gearboxes with oil level check plugs.

　　①Start the engine to warm up and reach the normal operating temperature.

　　②Find the oil level check screw plug and unscrew it.

　　③Remove the transmission gear oil drain plug, drain off the gear oil and tighten it.

　　④ Use a gear oil filler to fill the gearbox with gear oil that meets the requirements from the oil level inspection hole.

　　A car needs to be maintained every XNUMX kilometers, and the gear oil needs to be replaced once a car does not travel XNUMX kilometers. As a traditional accessory in a car, gear is indispensable for maintenance.The above is all about and the knowledge of automobile gear oil to share, I hope it will be helpful to everyone.