For every car owner, turbocharging is a familiar word. A car with turbocharging can really play a significant role in power and fuel economy. Many car owners regard it as a symbol of speed and passion. The corresponding turbocharged model is also slightly more expensive in the later maintenance cost. If the owner has bad driving habits and lacks correct maintenance knowledge, turbocharging will greatly reduce the performance and life of the vehicle. Listen to Jinan Audi car maintenance editor for your intimate introduction:
1. Choose engine oil
At present, most of the oil burning problems are caused by the damage of the oil seal between the turbocharger and the intake pipe, resulting in the phenomenon of oil burning. The main reason for the oil seal damage is that the oil change cycle is too long or the use of poor quality oil, resulting in the lack of lubrication and heat dissipation of the floating turbine main shaft, thus damaging the oil seal and causing oil leakage.
Therefore, turbochargers are relatively expensive. Compared with ordinary naturally aspirated engines, they require more oil. Part of the phenomenon of oil burning is mostly due to the damage of the oil seal between the turbocharger and the intake pipe, because the main shaft of the turbocharger is of floating design, and the whole main shaft relies on lubricating oil for heat dissipation and lubrication. If inferior oil is used, the floating main shaft of the turbine can not be lubricated and dissipated normally due to its high viscosity and poor fluidity. The oil with good oil quality has better oxidation resistance, wear resistance, high temperature resistance, lubrication and heat dissipation
2. Change the oil filter and air filter in time
The use of turbine models usually pay special attention to timely change the oil filter and air filter, and keep the turbine clean. Generally speaking, the clearance between the turbocharger shaft and the sleeve is very small. If the oil used is impure or the oil filter is not clean, it will cause excessive wear of the turbocharger.
Secondly, because there are a lot of impurities in the air, once the dust particles enter the high-speed operation, they will make the dust particles impact the turbocharger, resulting in unstable operation of the turbine and wear. You can regularly check whether the turbocharger is damaged, the way is to listen to whether there is abnormal noise or unusual vibration, whether the sealing ring is sealed, etc.
3. Start the cold car slowly and stop the hot car at idle speed
During cold start, the oil temperature is usually low and viscous, which leads to poor lubrication effect. Therefore, the lubrication effect can only be achieved when the temperature rises to the normal temperature. In this process, if the turbine is forced to work at full load, it will be worn. Therefore, it is suggested that the car should run at idle speed for 3-5 minutes before cold driving, or driving at low speed for a period of time can also play a preheating effect.
When parking, it's better to idle for a while and then turn off the engine, because the temperature reached by the turbocharger will be very high after it works. After the engine is turned off, the turbine will continue to run for a period of time due to inertia, that is to say, the role of lubricating oil is still needed at this time. If the engine is turned off immediately after parking, the cooling system and the supply of lubricating oil will also be stopped, which will cause a lot of problems Damage to vehicle bearings. Therefore, let the engine run for 2-3 minutes before flameout, so that the turbine has enough time to cool down.