Wasn't sure where to put this so if it is in the wrong place sorry to the mods!!

I just got home from a 5500 mile trip and on that trip I was around tons of cars. Has anyone been behind the new chevy diesels at highway speeds? The first one that passed my smelt funny. It had an unusual smell when I was behind it. I just figured it was just that truck. The longer I was on the road the more I was around and really watched my sniffer when they went around and all of them had this "odor". I did not notice it from the new fords or any of the new dodges. Just wanted to know if anyone else had noticed this.

Later

 

Anyone else???

 

Not me..Of course I dont follow chevys I leave em in the dirt. Just kidding (sort of). A friend of mine has a new one and I really didnt notice anything weird about the smell.

 

Well I try not to follow them either but when I am loaded heavy I dont have many options!!!

The smell is hard to explain it isnt very strong just has a little odor that you can kinda pick up when they are in front of me at about 70-80mph.

 

Smells like burning propane to me.

MikeyB

 

I drove a new 6.7 and it smelled the exact same way!!

 

I was close enough to a new ford that I got a good nose full and immediately though that doesn't smell right, not very diesel smelling. A few minuets later I was behind a old smoky dump truck and got a good nose full to confirm my thinking about the ford, I'm thinking it's the particle trap

 

I haven't got to smell a new one with the dpf yet, but I know the LLY and LBZ Duramaxes with the catalytic convertor still on them definetly have a nasty odor to them. I believe its the cat that makes this smell because I had a LLY and when it had the cat still on it, it had that smell. But when I replaced it with a piece of pipe the smell went away and it had the natural diesel exhaust fume smell.

 

Yeap thats the smell. Man you hit it right on the head with that one.

 

Its the new exhaust filter. It burns off the junk at highway speeds. family friend at a chevy dealer told us bout it.

 

That makes them stinky and ugly.