What Causes Severe Jerking After an Oil Change?

[VonLucia]

The reasons for severe jerking after an oil change are as follows: 1. Engine oil: The oil does not meet the standard or too much oil has been added. 2. Break-in period: After the break-in period of a new car, the engine noise may increase, and fuel consumption decreases. 3. Viscosity: The new oil has higher viscosity, leading to greater mechanical resistance and increased cylinder pressure. The functions of engine oil are as follows: 1. Lubrication: During engine operation, the friction between components is rapid and intense. A sufficiently thick oil film is needed between the piston and cylinder to separate the two components and reduce friction. 2. Cooling: The engine generates a lot of heat during operation, and the oil carries some of this heat back to the oil pan for dissipation. 3. Cleaning: Engine parts can produce oil sludge, carbon deposits, worn metal particles, and inhaled dust, which can easily form carbon buildup.

[OElliot]

After changing the engine oil, I clearly feel stronger jerking when driving, which is really strange. I suspect the oil might be overfilled - check the dipstick. If the oil level exceeds the upper limit, it can easily cause air bubbles and poor lubrication, leading to engine vibration. Or perhaps the oil viscosity is too high, like using thick winter oil in summer, which would make cold starts feel rough. Another possibility is that the old oil wasn't completely drained, mixing with new oil and changing viscosity, affecting engine response. I suggest you quickly measure the oil level - it should be between the upper and lower marks. If it's too high, drain some out and don't force the engine. Also, check if the oil filter is properly installed - incorrect installation can cause leaks and affect oil pressure. If you find any issues, return to the repair shop early for adjustments to avoid damaging engine lifespan.

[DiArthur]

After changing the engine oil, the increased jerking sensation is, in my personal opinion, primarily related to the quality or quantity of the oil used. If you've switched to a new oil, selecting the wrong viscosity could cause issues—for example, using a high-viscosity oil when a low-viscosity one was required might lead to insufficient oil pumping during acceleration or deceleration, resulting in a jerky feeling. Another possibility is that the oil was either underfilled or overfilled. I've seen cases where overfilling caused foaming in the lubrication system, affecting performance. I recommend using the dipstick to check the oil level, ensuring it's within the standard range. Also, verify whether the oil filter was replaced with the correct model, as a worn-out filter can clog the system and cause jerking. Additionally, residual old oil or air entering the pipeline might contribute to irregularities. The best course of action is to stop driving, check the oil level with the dipstick, and if necessary, return to the shop for a recheck to avoid long-term engine damage.

[DeGabriella]

After changing the oil in my car, I also experienced jerking sensations, as if the engine was hiccuping occasionally. Possible reasons include using the wrong type of oil—too high viscosity and thickness can cause poor lubrication. Alternatively, incorrect oil levels, either overfilled (which can cause foaming and affect smoothness) or underfilled, may be the issue. It's recommended to check the oil dipstick; the level should normally be around the middle mark. Another potential cause is incomplete draining of old oil during the oil change, leading to uneven mixing and jerking. If you notice this issue, adjust the oil promptly or have a professional recheck it.

[ZoeLynn]

Just after changing the oil, I felt a significant jerk, and immediately thought about the safety risks—how dangerous it would be if the acceleration became unstable on the highway. Possible reasons include too much or too little oil affecting the engine's balance, or using oil with an unsuitable viscosity for the season, leading to uneven power response. I suggest you first pull over and check the oil dipstick to ensure the level is correct, and confirm whether the new oil brand and specifications are appropriate. An improperly installed oil filter might also cause leaks and lead to issues. Don’t forget other possibilities, such as contaminants in the air system causing malfunctions. To avoid accidents, don’t continue driving forcefully; seek professional repair diagnostics as soon as possible. Developing a habit of regular maintenance can help prevent such problems.