Is Slight Shaking Normal After an Oil Change?

[SanReagan]

Newly changed oil causing slight shaking is definitely not normal. Here are the reasons for slight shaking after an oil change: Oil Fill Level: If there is too much oil, the excess can easily enter the combustion chamber and form gummy carbon deposits. While there may not be obvious effects initially, over time, the carbon deposits will worsen, leading not only to idle shaking but also clogging the catalytic converter's pores, causing excessive exhaust emissions. In severe cases, oil burning may occur. 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 flow, potentially causing engine shaking at idle. Additionally, the quality of the oil matters—substandard oil often lacks reliable quality assurance, which can lead to idle shaking and directly impact the vehicle's overall performance.