What are the methods for cleaning engine carbon deposits?

[DeThomas]

Methods for cleaning engine carbon deposits include: 1. Remove the throttle body, clean both sides with carburetor cleaner, and wipe dry with a cloth. It is generally recommended to clean the throttle body once a year or every 20,000 kilometers; 2. Intake system cleaning: Purchase a bottle of intake system cleaner, pour it into the reservoir of a dedicated cleaning device, connect it to the intake system, and start the engine to use vacuum to draw the cleaner into the intake passages for cleaning; 3. Engine internal carbon deposit cleaning: This can be done before changing the engine oil. Open the oil cap, add the cleaner, mix it with the old oil, and let the engine idle for about 10 minutes.