Wow! I am experiencing a nice pretty and stinky blue plume that exits my tail pipe during regen. Does anyone else experience this? I guess this is good for the environment...

Mine has done it 3 or 4 times, but not at every regen. 16k on it now.

this is not normal if you are using Ultra Low Sulfer Diesel fuel. Pretty common if you use fuel with a higher sulfer content...except I would expect the color to tend more towards grey instead of blue.

Mine did this when it was new. 13K now and rarely see it. Maybe if I get some higher sulfer content fuel at a truck stop.