Not being a diesel guy myself I probably don't have a valid comment on this thread. BUT - I have been behind a couple big pickups running diesels (don't know the brands but probably 3/4 or 1 tons) that sounded like jet engines spinning up every time they accelerated; it was an extremely high-pitched noise that ramped up to what seemed like 600db when the dude touched his accelerator then and immediately bled off as he moved ahead. Both those times we were in heavy stop-and-go traffic and I was right behind them. It darn near drove me crazy - the high pitch jet screaming noise. I've got pretty serious tinnitus and the diesel-jet noise was killing me, and I couldn't get away. At one point when the traffic was stopped again, I felt like jumping outa my old Dakota running up to the diesel driver and begging him to pull outa line and off the road. It was that obnoxious. But, I probably woulda got my butt kicked. (I'm almost 70 and not as tolerant of scrambling as I used to be.) Ha ha. Anyway, eventually the traffic thinned out and he sped away, and the world came back to normal again.
By the way for you diesel guys - what in God's name is on those engines that makes it sound like an F-16 engine spinning up? And is that supposed to be cool?