Car turbocharger can improve an engine's fuel efficiency by reducing the amount of fuel needed to produce the same amount of power. This is because the turbocharger can make the engine achieve higher power at lower speeds, thereby reducing the load on the engine and fuel consumption. In addition, the turbocharger can also make the combustion of the engine more complete, thereby improving the utilization rate of fuel. Therefore, after using the turbocharger, the engine can consume less fuel under the same power, so as to achieve the purpose of energy saving and emission reduction. Automobile turbocharger is a technology to improve the fuel economy of the engine, which can effectively reduce the fuel consumption and operating cost of the engine.