Did the spark plug change the throttle or shake?

Hello gives me the feeling that. Oil problem, don't think the car is old. Don't change any good oil, but this is wrong. Cheap engine oil has high viscosity, especially in Leng Yue, because you mentioned it. It's obvious when the car is cold. The suggestion is to replace the existing ones with better ones. Just step on the gas less. What's more, when the car is cold, it will smell of gasoline if it is not completely burned, so you can start as long as the speed is stable, but you should control the speed and move at a low speed. If you continue to heat the car, it is easy to produce carbon deposit. Valve, if the hot car can start normally, there is no problem.