14 how about the fuel consumption of Toyota Yizhi for more than 30,000 kilometers?

Hello, this situation is mainly caused by excessive carbon deposition in the engine. It is necessary to clean the throttle and fuel injector to ensure smooth fuel injection and check whether the spark plug is normal. If the color turns black, you need to replace the spark plug to improve the ignition energy, achieve complete combustion, reduce fuel consumption, and timely repair and maintenance to ensure smooth, comfortable and safe driving. Thank you.