What are the reasons for the sudden increase in fuel consumption of the Kia K3?

[StCorey]

There are several reasons for increased fuel consumption: 1. Weak high-voltage spark in the ignition system; 2. Insufficient fuel supply in the fuel system or poor atomization of the fuel injector; 3. Insufficient cylinder pressure in the engine; 4. Poor quality of the fuel used. 5. The vehicle's single-trip distance is too short, the average speed is relatively low, and braking is frequent, especially in urban stop-and-go traffic, making it impossible to reduce fuel consumption. 6. Additionally, the vehicle's load and whether the air conditioning is used can also affect fuel consumption. Overall, winter fuel consumption is about 1-2L higher than in summer under the same conditions, which is within the normal range.