508 1.6THP engine sound problem

Friends, you can listen to the sound from the engine of my 2012 model vehicle in the link. I had all the controls of the vehicle. They said no problem. But the vehicle makes such a sound around 1000 2000 rpm. As the speed rises, the sound seems to be gone. I get this sound in the car too, and it's annoying sound. Despite being a gasoline engine, it sounds like a diesel vehicle. I am waiting for your urgent ideas.

https://www.youtube.com/watch?v=tyybm2pbas to

Hello there.
It may be from the spark plugs.

It is easy to fold the rose-like thorn, which has been very short, to be chosen as the engine of the year 3 times in a row. The sound of normal thp engines sounds between gasoline and diesel. When it is cold in the weather, it is useful to listen and listen in the first time in the morning. If the sound is the same after 1 minute as it first worked, it means no problem.