Why has my 20 15 Nissan Teana 2.0 been running for less than a year, but the engine speed is fast and slow? It wasn't like this before.

Hello, your Scorpio is slow, and it slows down after using it for a while. The specific impact on speed increase is as follows:

The displacement of the car is the power output, and the speed of the car with a small displacement and low power engine will definitely not be fast.

The transmission efficiency is low, that is, once you step on the accelerator, the power will come up after a while.

External factors, compared with when the car is fully loaded, the speed will be slower and the tire pressure will be insufficient.

Poor maintenance, such as dirty throttle, carbon deposition in engine cylinder and service life of spark plug, will directly affect the speed-up performance of the car.

In short, if you always feel slow after buying a car, you have no choice but to change cars. If the speed is slow in the later period, it is recommended to go to the store to check the throttle, carbon deposit, spark plug and other problems.