How often should a turbocharged engine be cleaned?

[Florence]

Turbochargers do not require cleaning unless for aesthetic purposes. Routine maintenance is also unnecessary. When starting a cold engine, let it idle without revving up initially. Avoid prolonged idling when the engine is warm to prevent inadequate lubrication. Additionally, allow the engine to idle for over a minute before shutting it off after driving to protect the turbocharger. Here are key maintenance points for turbochargers: 1. Warm up carefully: After starting the engine, avoid pressing the accelerator pedal abruptly. Let the engine idle for one or two minutes first. This allows sufficient lubrication for the turbocharger before increasing engine speed to drive. Especially in winter, extend the warm-up idling time to 3-5 minutes, and refrain from aggressively revving to accelerate warming up, as this may damage the turbocharger oil seal. 2. Shut down gently: Do not suddenly turn off a high-speed turbocharged engine, especially after intense high-speed driving. Let the engine idle for about 3 minutes before shutting it off to allow the turbocharger rotor speed to gradually decrease. 3. Maintain cleanliness: Regularly clean the air filter to prevent dust and other impurities from entering the high-speed rotating compressor impeller, which could cause unstable rotation speed or accelerated wear on the bushing and seals.