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Is it normal to have slight shaking after changing the engine oil?

2 Answers

Ellen

07/24/25 1:36am

Reasons for slight shaking after changing the engine oil: If the car still shakes after changing the engine oil, it may be due to excessive carbon deposits in the fuel system or a change in the grade or brand of the new engine oil. Here are the specific details: 1. Excessive carbon deposits in the fuel system: The fuel system is a delicate part of car components. It is recommended to go to a 4S shop for cleaning carbon deposits. Carbon deposits in this part are mostly concentrated in the fuel injector, combustion chamber, three-way catalyst, throttle valve, intake pipe, and combustion chamber. Cleaning carbon deposits in the fuel system is necessary not only to eliminate the shaking problem but also to avoid the risk of engine knocking and to provide effective data for various electronic sensors. 2. Change in the grade or brand of the engine oil: Engine oil in China is divided into two types: 5w-30 and 5w-40. Different types of engine oil are suitable for different regions. If you change to a different engine oil during car maintenance, slight shaking and increased engine noise may occur.

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DeHarper

08/10/25 9:16pm

I just changed the engine oil, and the car is shaking a bit, which is quite common. The new oil needs some time to lubricate all the engine components, especially if the viscosity of the oil has changed—the engine will take a short while to adjust. It's like new shoes that are a bit stiff at first; they'll feel better after some use. But you should also check the oil dipstick to ensure the oil level isn't too high or too low, as that could also cause shaking. Additionally, when starting the engine for the first time after it has cooled down, the oil pressure may not be stable yet, leading to slight vibrations. Generally, driving a few kilometers or restarting the engine once or twice should resolve the issue. If the shaking is too severe or accompanied by unusual noises, it might indicate a problem, such as incorrect filling or an oil leak, and you should take it to a shop for inspection. Overall, minor shaking isn’t something to panic about—just keep an eye on it for a few days.

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