Coldest it's been here so far is -18C and I haven't smelled anything like that.
I sure would't mind that sour diesel as wellI'm not really sure about this smell but the funny thing is that "sour diesel smell" in Google just brings up a whole bunch of info on a strain of marijuana called "sour diesel".
We have had some cold weather in the last few months, today showing -24C on the truck thermo. The truck started just fine and I let it warm up for about 10 min while I got a coffee and a quick bite, however when I came back the exhaust from the truck smelled so bad. It could be that the DEF is frozen and is not doing its job, but I could smell a terrible sour smell from over 30 feet away. I could smell it for a few minutes while in the cab, but once I got to work it was fine. Anyone else encounter this?
Once I get in the truck and drive away I don't get any of the smell, my place of work is only 18 km away, and it is fine by the time I get there. I have only encountered it with very cold mornings when the truck first is started and is warming up.it may be the DEF not flowing. Does it smell like that later after it is driven for awhile??