Is Slight Shaking Normal After an Oil Change?
2 Answers
If the engine did not exhibit slight shaking before the oil change but starts to shake slightly after the oil change, this situation is abnormal. Reasons for car shaking after an oil change: 1. Oil Fill Level: If too much oil is added, the excess oil can easily enter the combustion chamber and form gummy carbon deposits. While there may be no obvious effects initially, over time, the carbon deposits will become increasingly severe, leading not only to idle shaking but also potentially clogging the catalytic converter, causing excessive exhaust emissions. In severe cases, it may even result in oil burning. 2. Oil Viscosity and Quality: It is crucial to choose oil that matches the vehicle model. If oil with excessively high viscosity is selected, it will inevitably affect the oil's flowability, which can cause engine shaking during idle. Additionally, the quality of the oil must be carefully considered. Low-quality oils often lack reliable quality assurance, which can not only lead to idle shaking but also directly impact the vehicle's overall performance.
After my last oil change, the car had a slight shake, which made me feel uneasy. As a regular commuter who drives to work every day, I wondered if it was because the wrong type of oil was used or if the amount wasn't enough. Oil that's too thick or too thin can put extra strain on the engine, causing minor vibrations. Also, if the filter isn't installed properly or air gets into the system, it can lead to this kind of shaking. I've had similar issues before, so I quickly checked the dipstick and found the oil level was indeed low. After adding half a liter, the car ran smoothly again. I'd suggest first checking your oil level and type before rushing to switch brands—some oils need a break-in period and may improve after driving a few dozen kilometers. However, if the shaking persists, it's best to visit a repair shop. There might be minor issues with the engine internals or ignition system, and addressing them early can prevent major repairs.
