Why does the classic Sylphy consume a lot of fuel after the second insurance?

Maintenance is generally professional. Generally speaking, the fuel consumption should be reduced after maintenance, but it has increased. The most likely situation is that the oil viscosity is high. Under the premise that the vehicle condition and road conditions are basically the same, using high viscosity engine oil will consume more engine oil. In the following test, the difference between the minimum and maximum fuel consumption is1L.

This is the data tested on the premise that the car condition and road conditions are basically the same:

Solutions for high fuel consumption

Prescription 1: Regular maintenance and inspection to ensure fuel consumption. Always maintain and check when using. First of all, regular maintenance and regular inspection must be carried out. If problems are found, it is best to solve them at once, so as to avoid small problems being delayed into big problems; Secondly, it is best for car owners to clean the throttle and nozzle every 7500-8000 km, about 200-300 yuan, and it is best to clean the intake and combustion chamber every 10000 km, about 200-300 yuan; Finally, check whether the tire pressure is normal at any time.

Prescription 2: Correct the wrong driving habits. When you step on the gas pedal, you have to loosen your feet: many owners of automatic cars are used to stepping on the gas pedal tightly when refueling. Because you don't let go of the accelerator, the car computer thinks that the owner needs to overtake or accelerate quickly. At this time, vehicles often do not automatically upshift, but stay in low gear, and fuel consumption naturally increases. The correct way is: when the speed reaches the range of 2000-3500 rpm, adjust the throttle slightly to make the vehicle easily upshift. Uniform oil collection: when refueling, refuel at a constant speed. If the oil is suddenly collected, the engine computer cannot respond immediately. If the owner wants to slow down, he will continue to inject fuel, and this part of the oil will be wasted. Fuel consumption of neutral taxi = 60km/h: Many masters often mention the truth of neutral taxi fuel saving when teaching fuel saving experience, but it is not. Nowadays, cars are all EFI, not to mention the danger of sliding in neutral. Sliding in neutral consumes idle fuel consumption, which is equivalent to the fuel consumption of vehicles at 60 km/h.