How long does a car turbocharger last? This is a question that many turbocharged engine owners want to ask. Now, due to the special requirements of environmental protection, many models have been equipped with turbocharged engines. A waste turbine is added to the naturally aspirated engine to increase the engine power. Is the life of the turbocharger the same as that of the engine?

The full name of turbocharger is exhaust gas turbocharger. The system compresses low temperature and low pressure gas into low temperature and high pressure gas to increase the intake volume of the engine, so as to achieve the purpose of increasing engine power with multiple fuel injections; The supercharger itself is a low-temperature component, but the power of the supercharger comes from the high-temperature and high-pressure engine exhaust gas, and the exhaust gas temperature is as high as 900 ° C-1000 ° C; In addition, under the full load condition of the engine, the turbine speed is up to 180000-200000 rpm, so the working environment of the turbocharger is very bad, and the speed is high, which has a direct impact on the life of the turbocharger.

Due to the high temperature and high speed, the turbocharger requires high turbine material, and the bearing needs efficient and stable lubrication, which requires high oil, bearing and oil seal.

Therefore, when the early supercharger is used for 80000~100000 km, or even earlier, there will be oil leakage from the front and rear oil seals of the supercharger, which will seriously block the catalytic converter, resulting in difficult acceleration; With the progress of technology and process, the supercharger has gradually matured. For example, the service life of the current supercharger can reach about 250000 km. The service life of the engine can generally guarantee several hundred thousand kilometers without major repair; The service life of the supercharger and engine is greatly affected by maintenance, especially the supercharger; Turbocharged models have high requirements for oil consumption and lubrication. It is recommended that you replace the lubricating oil within the maintenance mileage specified by the manufacturer, and try to choose the oil recommended by the original manufacturer. The use of inferior oil will cause the floating turbine main shaft to lack lubrication and heat dissipation, thus damaging the oil seal and causing oil leakage.