What is the reason for the excessive fuel consumption of Buick gl8 LUZun 2.4?

Hello, car owner, there may be many reasons for Buick Luzun's excessive fuel consumption, such as ignition system failure, excessive wear of pistons, piston rings and cylinder walls. The valve mechanism is not tightly sealed or the valve clearance is too large. Engine temperature is too high or too low. The clutch slipped. The fit clearance between the shaft, bearing and gear of the transmission is too small. Improper toe-in adjustment. The tire pressure does not meet the requirements and the air pressure is low. Solutions to high fuel consumption: calibration of spark plug gap, excessive fuel injection, uneven fuel injection of each cylinder or poor atomization, etc. , and adjust in time. If it is found that the exhaust pipe emits black smoke, the work is weak and the water temperature is too high, it is necessary to correctly choose the injection and injection advance angle. If the temperature is high, remove the scale from the radiator and engine water jacket and repair the water pump. If the temperature is low, check the operation of the thermostat. I hope I can help you. Have a nice trip. If there is something wrong with the car, ask the car master. 4S shop professional technician, 10 minutes to solve.