What should be noted after driving a turbocharged car at high speed?
2 Answers
After driving a turbocharged car at high speed, it is important to avoid excessively high engine RPM. Do not turn off the engine immediately after high-speed driving; instead, let the engine idle for three minutes to assist in cooling the turbo. The key component of a turbocharger is its bearing. This type of bearing, named after its lubrication method, is referred to as a 'full-floating bearing' and operates at extremely high speeds under harsh conditions. Turbocharging can be categorized into four types: mechanical supercharging, pressure wave supercharging, exhaust gas turbocharging, and compound supercharging. Essentially, a turbocharger is an air compressor that increases engine power and torque by compressing air to enhance the engine's air intake, thereby making the vehicle more powerful.
After a turbocharged car runs at high speed, the turbocharger gets extremely hot due to the massive friction heat generated by high-speed operation. Don't rush to turn off the engine; let it idle for two to three minutes to allow the oil to continue flowing and cool the turbo. This prevents instant oil coking that could damage the bearings, otherwise, the repair costs could be high. Meanwhile, check the oil level as it may evaporate or degrade under high temperatures, ensuring it's within the normal range. It's recommended to regularly change to high-quality synthetic oil and perform maintenance every 5,000 kilometers to protect the system. High-speed driving puts a heavy load on the car, so after parking, also listen for any abnormal noises to avoid faults and extend the service life. Developing good habits makes the car more durable.
