i got a 2012 Mazda GS skyactiv 6sp manual 4 month ago
and when my car is at a light or stop sign or whatever just sitting there, i can feel slight vibration.

It does it when the heat is off and on and when the A/C is off.
Skyactiv engine is dirct injction engine, so it has high compression pressure.

Any one have any personal experience and suggestions.

Thanks