How often does Honda Feng Fan clean up carbon deposits?

Honda Feng Fan cleans up carbon deposits every 20,000 kilometers, and the methods to prevent carbon deposits are: 1, filling high-quality gasoline; 2. Don't be idle for a long time; 3. Run at high speed and try to improve the shift speed of the walking car; 4. Pay attention to the timing of the car. The length, width and height of Honda Feng Fan are 4422 mm, 1695 mm and 1470 mm, respectively. The wheelbase is 2550 mm, the fuel tank volume is 42 liters, and the trunk volume is 506 liters. In terms of power, Honda Feng Fan is equipped with a 1.5L naturally aspirated engine with a maximum power of 88kW and a maximum torque of 145nm, which is matched with a 5-speed manual transmission.