【Car owner's home car knowledge】There are more and more turbocharged cars sold in the auto market. The main function of this model with T is to increase the engine air intake, thereby increasing the power and torque of the main engine, making the car more powerful. But some automotive professionals said that turbocharged cars are of particular importance in use.
The engine is prone to damage if used improperly
Mr. Liu bought a turbocharged car three years ago. Recently, he found that there was a problem with the engine and it would shut down at any time. After driving to the 4S store for inspection, the maintenance staff said that the main reason is that the car owner does not know how to use the turbocharged car, which causes the engine to malfunction. Mr. Liu said, "I usually just run in the city and rarely go on the highway. In addition, the car will shut down as soon as I stop. How could such a failure occur?"
High maintenance cost of turbocharged engine
Automotive maintenance professional Master Wei said that compared with ordinary naturally aspirated engines, the maintenance and maintenance costs of turbocharged engines are slightly higher. The exhaust-gas-driven turbine has extremely high rotation speeds when working and requires high-quality engine oil to achieve lubrication and cooling. W
【Car owner's home car knowledge】There are more and more turbocharged cars sold in the auto market. The main function of this model with T is to increase the engine air intake, thereby increasing the power and torque of the main engine, making the car more powerful. But some automotive professionals said that turbocharged cars are of particular importance in use.
The engine is prone to damage if used improperly
Mr. Liu bought a turbocharged car three years ago. Recently, he found that there was a problem with the engine and it would shut down at any time. After driving to the 4S store for inspection, the maintenance staff said that the main reason is that the car owner does not know how to use the turbocharged car, which causes the engine to malfunction. Mr. Liu said, "I usually just run in the city and rarely go on the highway. In addition, the car will shut down as soon as I stop. How could such a failure occur?"
High maintenance cost of turbocharged engine
Automotive maintenance professional Master Wei said that compared with ordinary naturally aspirated engines, the maintenance and maintenance costs of turbocharged engines are slightly higher. The exhaust-gas-driven turbine has extremely high rotation speeds when working and requires high-quality engine oil to achieve lubrication and cooling. When you stop after driving, you cannot turn off the engine immediately. Instead, the engine must be idle for a while to lubricate and cool the turbocharger and discharge the exhaust gas. This will extend the service life of the turbocharger, otherwise it will easily damage the engine.
Master Wei said, "If you only use cars in the city, then I don't agree with car owners to buy turbocharged models, because turbocharger is difficult to reflect at low speeds. Many turbochargers can only be reflected at three or four thousand rpm. If you only drive in the city, the number of rpms will be increased by only more than two thousand rpms, so the turbocharger will not play its role at all."
It is understood that the maintenance cost of turbochargers is relatively expensive. Generally, turbocharged models need to be replaced with a new turbine at around 60,000 kilometers. In addition, turbocharger requires higher quality engine oil. In this way, the maintenance cost and maintenance cost of turbocharged models will appear relatively high.
Tips: Use of turbocharged engines
After the turbocharged engine is started, you cannot press the accelerator pedal quickly. You should run at idle for three minutes first. This is to increase the oil temperature and improve the flow performance, so that the turbocharger can be fully lubricated, and then the engine speed can be increased and the driving starts.
After a long-term high-speed operation, the turbocharged engine cannot be turned off immediately. The reason is that when the engine is working, part of the engine oil is supplied to the turbocharger rotor bearing lubrication and cooling. After the running engine is suddenly shut down, the oil pressure will drop rapidly to zero, the oil lubrication will be interrupted, and the heat inside the turbocharger cannot be taken away by the engine oil. At this time, the high temperature of the turbine part of the supercharger will be transmitted to the middle, and the heat in the bearing support shell cannot be taken away quickly, while the supercharger rotor still rotates at high speed under inertia. This will cause the turbocharger shaft to "kill" and damage to the bearing and shaft. Therefore, the engine should run at idle for about three minutes before shutting down to reduce the rotor speed of the turbocharger. In addition, it is worth noting that the turbocharged engine is also not suitable for long-term idle operation and should generally be kept within 10 minutes.
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