BlackSheep5

i did a search and really didnt find any answers.

im on my 2nd or 3rd tank of ULSD and i noticed that i dont have black smoke anymore its now a greyish white and you can barely see now. also i noticed my egt's are a little higher now.

is this normal for ULSD?

BCB

i am on my first tank of ULSD and it still smokes good and black... just a little less then before.

BlackSheep5

anyone else have any ideas?

BlackSheep5

maybe its not the ULSD what else could cause this? i dont think ive lost any power.

wilderness

I heard it burns hotter to reduce soot. I also heard they are going to put some sort of after burner cat on the newer trucks to burn the soot up and reduce emissions.

MikeyB

Still getting black smoke using ULSD and the SMARTY programmer.

MikeyB

BigBlue

Been running ULSD for a while now and the truck is still just as smokey as ever.

taildragger

I think that you might have a grayer smoke from the smaller particulate matter that the ULSD might make. I noticed that this summer when I ran it in my truck, and with B99 I got an almost yellow haze instead for smoke. I still get black smoke with the diesel here in OK (not sure what the real ppm is, some stations that I buy fuel from will probably stop carrying diesel when they have to switch to the ULSD). So I'd just think that its the ULSD and nothing to worry about.