~160 miles old and buzzing vibration at idle

[silverback]

Hi all, At almost 160 miles old I'm noticing a high frequency (buzzing) engine vibration coming through the brake pedal when I'm stopped in traffic. I can see this in the mirrors a little also. Has anyone else experienced anything like this? Will it go away after break in? Do I need to meet my service advisor? Or is this a diesel thing? Have to admit it doesn't bother me that much (kind of a foot massage). Then again I just gave Chevy a whole bucket of cash and I want a machine that is solid. Also, I'm new to the diesel way of motoring and don't know what's normal (yet)
Thanks,
Ken

[Kennedy]

Depends how bad it is. Noise can transmit through parts that connect the engine to the cab like heater hoses etc. As an example, if the metal part of a 6.5 heater hose contacted an injector line, the noise would transmit to the heater area.

Some additional noise/vibration is normal when comparing a diesel to a gasser.