Why is the car suddenly consuming more fuel?

[LaNoah]

There are several reasons why a car may suddenly consume more fuel, such as incorrect fuel grade, poor fuel line flow, spark plug gaps being too large or too small, incorrect ignition timing, excessive clearance between engine cylinder liners and piston rings, excessive valve clearance, and other issues. Generally, driving in winter consumes more fuel than in summer, and driving in urban areas consumes more fuel than on highways. Here is a method to calculate a car's fuel consumption: Calculate fuel consumption based on the relationship between distance and speed. 1. Fill the car with fuel until the pump automatically stops (jump gun), and record the current mileage. 2. The next time you refuel, fill it until the pump automatically stops again, and record the amount of fuel added. 3. Calculate the distance traveled since the last refueling and use the relationship between distance and speed to determine the fuel consumption.