How Often Should a Sedan Engine Be Cleaned?

[McIsla]

For cleaning the internal lubrication system and carbon deposits of the engine, a deep cleaning is recommended approximately every 50,000 kilometers. 1. Purpose: The purpose of engine cleaning is to remove carbon deposits. If the vehicle has no carbon deposits, cleaning is completely unnecessary. Cleaning once every 40,000 to 50,000 kilometers is sufficient. If there are excessive carbon deposits, cleaning is required (excessive carbon deposits can lead to poor engine ignition, body shaking, etc.). 2. Cleaning Interval: The cleaning interval is related to the usual maintenance of the engine. Generally, frequent oil changes and air filter replacements are recommended. Avoid using low-quality fuel, and engine cleaning may not be necessary. You can check the exhaust port of the muffler; if there is no excessive carbon deposit inside when touched by hand and the fingers do not turn black, it indicates normal engine combustion without carbon deposit issues.