The fuel consumption of Maxima suddenly increased to 10.

Regarding your question, if the vehicle has been maintained normally in the 4s shop and the fuel suddenly increases, it is very important to check the electronic control system, such as oxygen sensor, intake pressure sensor and water temperature sensor. And the inaccurate signals of these sensors will have an impact on fuel consumption. Secondly, check whether the tire pressure is too low, and check whether the parking brake returns badly. These factors will also affect fuel consumption, and faults with high fuel consumption need to be comprehensively inspected. I hope my answer is helpful to you.