I don't get the people inferring the a diesel generator in not quite. The ones I have been around could not be determined if it was actually running. I could detect something but not any engine or fan noise. Even touching the MH, I could not detect any vibrations. We do not have a diesel gen, or MH for that matter, the diesel gen would be the big benefit of having a diesel pusher MH. Our gas gen is fairly quite and vibration free, but nothing like the diesel generators I have observed.