Black cloud turned grey

[RussJ]

Lately I have been noticing that when I step on the skinny pedal good and hard I have been blowing a greyish-brown cloud of smoke instead of my usual black as night, fading to grey type cloud. I usually run my Smarty on 5 by itself and occasionally turn the Juice up to 2 or 3. What would cause this change in smoke color? The power does'nt seem to have been affected, but I may have just slowly gotten used to it. I'm curious about fuel pressure (hopefully santa brings me a guage) but I'm open to any ideas.

 

[RobertP]

grey or lighter than black smoke is evidence of a better burn, the smarty is managing the fuel better thats all.

 

[JCleary]

Colder temps = denser air = less smoke

 

[Doughboy21kd]

Colder temps = denser air = less smoke

Thats what i was gonna say... cause i have noticed the same thing.....



Less smoke made me think my truck was broke... :-laf :-laf

 

[Jefff929]

U L S D enjoy

 

[Devan Manis]

combo of ulsd and more air.

 

[RussJ]

Thanks guys, good to know nothings broken!

 

[lmills]

Yeh. I never did have a dark black cloud from my smarty. Everysince the first time I loaded it I thought it was gray. Of course we have been running the ULSD here for a while also.

 

[The patriot]

I was going to say ULSD and/or winter blend.

 

[jltcasper3]

I've noticed that with mine too. I'm thinking it's just colder densor air, a better burn.