Is Slight Shaking After an Oil Change Normal?

[StDiana]

Slight shaking after an oil change is definitely not normal. Here are the reasons that may cause slight shaking: 1. Oil Fill Level: If there is too much oil, the excess can easily enter the combustion chamber and form sticky carbon deposits. While there may not be any noticeable effects initially, over time, the carbon buildup will become increasingly severe, leading not only to idle shaking but also clogging the catalytic converter pores, resulting in excessive exhaust emissions. In severe cases, it may even cause oil burning. 2. Oil Viscosity and Quality: Choosing the right oil for your vehicle is crucial. If the oil viscosity is too high, it will affect the oil's flowability, which can lead to engine shaking during idle. Additionally, the quality of the oil must be carefully considered. Inferior oil often lacks reliable quality assurance, which can not only cause idle shaking but also directly impact the vehicle's overall performance.