Why does my Ford Focus engine shake when idling?

I recently purchased a Ford Focus and have noticed that the engine shakes when the car is idle. It seems to smooth out when I accelerate, but it's quite noticeable at stop lights. Is this normal for Ford Focus cars or should I have it checked out?

It could be a sign of an underlying issue with the engine. I would recommend taking it to a trusted mechanic for a diagnostic check.

This is a common issue in Ford Focus cars and usually not something to be concerned about. However, if it's causing any performance issues, it's best to get it checked out.

Try using a higher quality fuel and see if that helps reduce the shaking. If not, definitely take it in for a checkup.