How often does Emgrand clean the throttle?

Emgrand cleans the throttle valve within the range of 20,000-30,000 kilometers, and the cleaning function is: 1. It can effectively clean and dredge the glue and carbon deposit of the injector and keep the fuel system clean; 2。 It can clean the exhaust gas circulation system, reduce exhaust gas emission and save fuel, thus effectively protecting the oxygen sensor and the three-way catalytic converter; 3。 It is helpful to prevent the symptoms such as knocking, unstable idle speed and poor acceleration caused by colloid and carbon deposition. Emgrand Geely Automobile is a compact car with length, width and height of 4632mm, 1789mm and 1470mm respectively. A naturally aspirated engine with a wheelbase of 2650mm, 1.5L and a maximum power of 80kw, matched with CVT continuously variable transmission and 5-speed MT gearbox.