Why do some cars increase fuel consumption after changing transmission oil?

The fuel consumption of a car is the most concerned issue for many car owners, because the fuel consumption is directly related to the car cost of the car owners. However, the fuel consumption of some cars will increase after changing the transmission oil. There are actually two reasons for this failure. 1 On the one hand, the car was replaced with inferior gearbox oil, which led to poor gearbox working conditions and increased fuel consumption. The second aspect is caused by the serious carbon deposition on the automobile accelerator.

First, the inferior gearbox oil was replaced.

You should know that the gearbox of an automobile is one of the three major parts of an automobile, and the speed change of the automobile is directly related to the gearbox, so the working condition of the gearbox of an automobile directly affects the use of the automobile. However, some car owners have reported that the fuel consumption of the car will increase after changing the gearbox oil. This fault phenomenon is actually because the owner added inferior gearbox oil, because the viscosity of inferior gearbox oil is relatively high, and the antioxidant effect is not very good. The increase of gearbox load will lead to the increase of automobile fuel consumption. Second, the problem of carbon deposition in automobile throttle will also lead to an increase in automobile fuel consumption.

You know, after changing the gearbox, the fuel consumption will increase. In fact, this phenomenon is not caused by the gearbox itself, but by the serious carbon deposition on the accelerator of the car. Because the throttle valve controls the air intake of the engine, the constant air intake determines the jitter and fuel consumption of the engine. If there is too much carbon deposit in the throttle valve, the air entering the engine will be unstable, which will lead to the increase of automobile fuel consumption and the phenomenon of engine jitter. Third, summary.

Generally speaking, the fuel consumption of some cars increases after changing the gearbox oil, which is often caused by the owner changing the inferior gearbox oil and the heavy carbon deposition on the throttle. Therefore, the owner must go to a regular garage when maintaining the car, and at the same time clean the accelerator of the car regularly, so that the fuel consumption of the car will not increase again.